on average, a certain kind of kitchen appliance requires repairs once every one years. assume that the times between repairs are exponentially distributed. what is the probability that the appliance will work at least eight years without requiring repairs?

Answers

Answer 1
We can use the exponential distribution formula to solve this problem:

P(X > 8) = e^(-λx)

where X is the time between repairs, λ is the rate parameter (1/1 = 1), and x is the time we are interested in (8 years).

P(X > 8) = e^(-1*8) = e^(-8) = 0.00033546

Therefore, the probability that the appliance will work at least eight years without requiring repairs is approximately 0.00033546, or about 0.0335%.

Related Questions

The area of a rectangle is 8811m if the width of the garden is 89 m what’s the length

Answers

The length of the garden is 99 m.

What’s the length?

The formula for the area of a rectangle is:

Area = Length x Width

We are given that the area of the rectangle is 8811 [tex]m^{2}[/tex] and the width is 89 m. Substituting these values into the formula, we get:

8811 [tex]m^{2}[/tex] = Length x 89 m

To solve for the length, we can divide both sides of the equation by 89 m:

Length = 8811 [tex]m^{2}[/tex] / 89 m

Simplifying, we get:

Length = 99 m

Therefore, the length of the garden is 99 m.

to know more about rectangle

brainly.com/question/29123947

#SPJ1

Hw 18.2 -word problems

Jesenia is standing on a pedestrian bridge that is 9.5 feet above the lake .She looks down and sees a duck in the water .The duck is 4.5 feet away from jesenias position on the bridge.What is the angle of depression from jesenia to the duck ?

round the nearest degree.

Answers

The angle of depression from Jesenia to the duck is 25.17°. The solution has been obtained by using trigonometry.

What is trigonometry?

Right-angled triangles, their sides, angles, and connections are the main topics of the mathematical field of trigonometry.

We are given that that Jesenia is standing on a pedestrian bridge that is 9.5 feet above the lake and the duck is 4.5 feet away from jesenias position on the bridge.

This means that perpendicular is 9.5 and base is 4.5.

We know that tan θ is value of opposite side to adjacent side.

So, we get

⇒ Tan θ = [tex]\frac{4.5}{9.5}[/tex]

⇒ Tan θ = 0.47

⇒ θ = 25.17°

Hence, the angle of depression from Jesenia to the duck is 25.17°.

Learn more about trigonometry from the given link

https://brainly.com/question/13729598

#SPJ1

g produce a lift chart for the test data. what can you say about the predictive performance of the tree model?

Answers

To evaluate the predictive performance of the tree model, we need to create the lift chart using the test data and analyze its shape.

A lift chart is a graphical representation of the performance of a predictive model. It can be used to evaluate the effectiveness of a model in identifying a target variable, compared to a random guess. The lift chart shows how much better the model is performing than a random guess, at different levels of the target variable.

To produce a lift chart for a decision tree model, we typically first rank the test data according to the predicted probabilities of the target variable. Then, we divide the data into equal-sized segments, called quantiles, based on the predicted probabilities. For example, if we divide the data into 10 quantiles, the first quantile will contain the 10% of cases with the lowest predicted probabilities, the second quantile will contain the next 10% of cases, and so on, up to the 10th quantile, which will contain the 10% of cases with the highest predicted probabilities.

For each quantile, we calculate the ratio of the number of cases in that quantile that have the target variable to the number of cases we would expect to see if the model was performing no better than random chance. This ratio is called the lift, and it represents how much better the model is performing than random chance, at that level of the target variable.

We can then plot the lift for each quantile on a graph, with the x-axis representing the quantiles and the y-axis representing the lift. A good model will have a lift chart that is above the diagonal line, which represents the performance of a random guess.

To know more about  test data. here

https://brainly.com/question/30308987

#SPJ4

what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data?

Answers

After completing the following steps, you will have the quadratic regression equation that models the data with values rounded to the nearest whole number. Keep in mind that you'll need specific data points to provide an actual equation.

To find the values that complete the quadratic regression equation for a given set of data, you'll need to follow these steps:

1. Organize the data points into a table with x-values and y-values.
2. Determine the sums of x, y, x², x³, x⁴, and xy.
3. Create a system of linear equations using the sums found in step 2.
4. Solve the system of linear equations to find the coefficients a, b, and c.
5. Write the quadratic regression equation in the form y = ax² + bx + c, rounding the coefficients to the nearest whole number.

Learn more about quadratic regression equation here: brainly.com/question/17018837

#SPJ11

what is the maximum number of consecutive odd positive integers that can be added together before the sum exceeds ?

Answers

The maximum number of consecutive odd positive integers that can be added together before the sum exceeds 401 is 11.

Let's assume the first odd integer is x. Then, the sum of the next n consecutive odd integers would be given by:

x + (x+2) + (x+4) + ... + (x+2n-2) = nx + 2(1+2+...+n-1) = nx + n(n-1)

We want to find the largest n such that the sum is less than or equal to 401:

nx + n(n-1) ≤ 401

Since the integers are positive and odd, we can start with x=1 and then try increasing values of n until we find the largest value that satisfies the inequality:

n + n(n-1) ≤ 401

n² - n - 401 ≤ 0

Using the quadratic formula, we find that the solutions are:

n = (1 ± √(1+1604))/2

n ≈ -31.77 or n ≈ 32.77

We discard the negative solution and round down to the nearest integer, giving us n = 11. Therefore, the maximum number of consecutive odd positive integers that can be added together before the sum exceeds 401 is 11.

Learn more about sum

https://brainly.com/question/24205483

#SPJ4

Complete Question:

what is the maximum number of consecutive odd positive integers that can be added together before the sum exceeds 401?

Can someone help me Simplify:
(-7) (-3)
????

Answers

21 is the value of expression .

What is a mathematical expression?

A mathematical expression is a phrase that includes at least two numbers or variables, at least one arithmetic operation, and the expression itself. This mathematical operation may be addition, subtraction, multiplication, or division.

                               An expression's basic components are as follows: Expression: (Math Operator, Number/Variable, Math Operator). Any mathematical statement made up of numbers, variables, and an action between them is called an expression or an algebraic expression.

= (-7) (-3)

= 21

Learn more about expression

brainly.com/question/14083225

#SPJ1

an agency has specialists who analyze the frequency of letters of the alphabet in an attempt to decipher intercepted messages. suppose a particular letter is used at a rate of 6.6%. what is the mean number of times this letter will be found on a typical page of 2650 characters? 174.9 what is the standard deviation for the number of times this letter will be found on a typical page of 2650 characters ? round your answer to 1 decimal place. in an intercepted message, a page of 2650 characters is found to have the letter occurring192 times. would you consider this unusual?

Answers

Standard deviation normal distribution table or calculator to determine the probability of observing a z-score of 1.3 or higher.

The probability is approximately 0.0968, or 9.68%.

To determine the mean number of times the letter appears on a page, we can multiply the probability of the letter appearing (0.066) by the total number of characters on the page (2650):

[tex]Mean = 0.066 \times 2650 = 174.9[/tex]

To calculate the standard deviation, we can use the formula:

Standard deviation = [tex]\sqrt(n \times p \times q)[/tex]

n is the sample size (2650), p is the probability of success (0.066), and q is the probability of failure [tex](1 - p = 0.934)[/tex].

Standard deviation = [tex]sqrt(2650 \times 0.066 \times 0.934) = 13.2[/tex] (rounded to 1 decimal place)

Determine whether 192 occurrences of the letter on a page is unusual, we can use the z-score formula:

z = (x - mean) / standard deviation

x is the observed number of occurrences (192), mean is the expected number of occurrences (174.9), and standard deviation is the standard deviation we just calculated (13.2).

[tex]z = (192 - 174.9) / 13.2 = 1.3[/tex]

For similar questions on Standard deviation

https://brainly.com/question/475676

#SPJ11

Please help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The equivalent exponential expression for this problem is given as follows:

A. 4^15 x 5^10.

How to simplify the exponential expression?

The exponential expression in the context of this problem is defined as follows:

[tex]\left(\frac{4^3}{5^{-2}}\right)^5[/tex]

To simplify the expression, we must first apply the power of power rule, which means that when one exponential expression is elevated to an exponent, we keep the base and multiply the exponents, hence:

4^(15)/5^(-10)

The negative exponent at the denominator means that the expression can be moved to the numerator with a positive exponent, hence the simplified expression is given as follows:

4^15 x 5^10.

More can be learned about exponent rules at https://brainly.com/question/11975096

#SPJ1

Answer every question. Pick one option for each question. Show your work.

1. Over one week, a snack booth at a fair sold 362 cans of soft drinks for $1.75 each and
221 hot dogs for $2.35 each. Which calculation will give the total sales of soft drinks and
hot dogs?

A. 362(2.35) + 221(1.75)

B. 221(2.35) + 362(2.35)

C. 221(1.75) + 362(1.75)

D. 362(1.75) + 221(2.35)

Answers

Answer:

The answer is D.

Explanation:

There were 362 cans of soft drinks sold for $1.75 each so you would multiply them together to get the sales of soft drinks. There were also 221 hot dogs for $2.35 each so you would multiply them together to get the sales of hot dogs. Since the problem is asking for both the sale of soft drinks you add them together. Therefore, the answer is 362(1.75) + 221(2.35).

A triangle has vertices at (-1,5), (4,2), and (1,2).

Answers

If a triangle has vertices at (-1,5), (4,2), and (1,2). The perimeter of the triangle is: 12.44 units.

What is the perimeter of the triangle?

To find the perimeter of the triangle, we need to calculate the distance between each pair of vertices and then add them up. We can use the distance formula to find the distance between two points:

Distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)

Using this formula, we can calculate the three sides of the triangle:

Side 1: Distance between (-1,5) and (4,2)

= sqrt((4 - (-1))^2 + (2 - 5)^2)

= sqrt(5^2 + (-3)^2)

= sqrt(34)

Side 2: Distance between (4,2) and (1,2)

= sqrt((1 - 4)^2 + (2 - 2)^2)

= sqrt((-3)^2 + 0^2)

= 3

Side 3: Distance between (1,2) and (-1,5)

= sqrt((-1 - 1)^2 + (5 - 2)^2)

= sqrt((-2)^2 + 3^2)

= sqrt(13)

Now, we can add up the three sides to get the perimeter:

Perimeter = Side 1 + Side 2 + Side 3

= sqrt(34) + 3 + sqrt(13)

≈ 12.44 (rounded to two decimal places)

Therefore, the perimeter of the triangle is approximately 12.44 units.

Learn more about perimeter here:https://brainly.com/question/15829428

#SPJ1

The complete question is:

A triangle has vertices at (-1,5), (4,2), and (1,2). What is the perimeter of the triangle.

Which of the following best describes the expression 9(x + 7)? (20 brainly points)
A: The sum of constant factors 9 and x + 7
B: The product of constant factors 9 and x + 7
C: The product of a constant factor 9 and a 2-term factor x + 7
D: The sum of a constant factor 9 and a 2-term factor x + 7

Answers

The statement that express 9(x + 7) is product of constant factors 9 and x + 7. The Option B.

What does the expression 9(x + 7) represent?

The expression 9(x + 7) represents the product of constant factors 9 and x + 7. To evaluate the expression, you would distribute the 9 to both terms inside the parentheses, resulting in 9x + 63.

This expression can also be written as a 2-term factor of 9 and x + 7. It is important to understand the different terms and factors in an expression to simplify and solve equations.

Read more about product

brainly.com/question/13152087

#SPJ1

Ashanti works at a T-shirt shop, She sold 15 T-Shirts. Of the shirts she sold, 3 were blue. What is the experimental probability that the next shirt she sells will be blue?

Answers

Step-by-step explanation:

The 'experiment' shows that   3 out of 15 shirts sold is blue

  or  3/15    ....    =  1/5  chance the next shirt is blue

the rule T(-3,1) is applied to point 2,-7 in which part of the coordinate system is the translated point

Answers

the translated point is located in the third quadrant of the coordinate system, since both coordinates are negative.

What is Cartesian coordinate?

A coordinate system, also known as a Cartesian coordinate system, is a system used to describe the position of points in space. It is named after the French mathematician and philosopher René Descartes, who introduced the concept in the 17th century. In a coordinate system, each point is assigned a unique pair of numbers, called coordinates, that describe its position relative to two perpendicular lines, called axes. The horizontal axis is usually labeled x and the vertical axis is usually labeled y.

To apply the translation rule T(-3, 1) to the point (2, -7), we need to add the translation vector (-3, 1) to the coordinates of the point:

(2, -7) + (-3, 1) = (-1, -6)

The resulting point after the translation is (-1, -6).

Therefore, the translated point is located in the third quadrant of the coordinate system, since both coordinates are negative.

Learn more about Cartesian coordinates, by the following link

https://brainly.com/question/17206319

#SPJ9

HURRY 40 POINTS!!

What is the surface area of this right rectangular prism?

Enter your answer as a mixed number in simplest form by filling in the boxes.

ft²

Answers

The surface area of the rectangular prism is 29 2/3 ft²

How to determine the surface area

The formula for calculating the surface area of a rectangular prism is expressed as;

SA = 2(wl + hw + hl)

Where the parameters are;

SA is the surface areaw is the width of the prismh is the height of the prisml is the length of the prism

From the information given, we have that;

Wl = 3 × 5/2

multiply the values

wl = 15/2

hw = 4/3 × 3

hw = 4

hl = 4/3 × 5/2 = 20/6 = 10/3

Substitute the values

Surface area = 2(4 + 10/3 + 15/2)

Surface area = 2(24 + 20 + 45/6)

Surface area = 2(89)/6

Surface area = 89/3 = 29 2/3 ft²

Learn about surface area at: https://brainly.com/question/24284033

#SPJ1

Divide and write your answer in standard notation to the nearest whole number with commas.

Answers

Answer:

The answer is 1×10⁶ to the nearest whole number

Step-by-step explanation:

7.6×10⁰/5.4×10‐⁶

7.6×10^(0-(-6)/5.4

7.6×10^(0+6)/5.4

7.6×10⁶/5.4

=1×10⁶ to the nearest whole number

the dimensions of a square right pyramid are shown below. the pyramid is sliced by a plane that passes vertically through the top vertex and is perpendicular to the base. what is the resulting two-dimensional shape and the area of the plane section?

Answers

The resulting two-dimensional shape is a square with an area of 72 square units.

The pyramid is a square right pyramid, the base is a square and the vertical height meets the base at its center. When the pyramid is sliced by a plane that passes vertically through the top vertex and is perpendicular to the base, the resulting two-dimensional shape is a square.

The plane section intersects the four triangular faces of the pyramid, creating four smaller triangles with the same shape and size. These four triangles can be rearranged to form a smaller square that is similar to the larger square base of the pyramid. The area of the plane section is equal to the area of the smaller square, which is proportional to the area of the larger square base. The proportionality constant is equal to the ratio of the height of the plane section to the height of the pyramid.

Let H be the height of the pyramid and h be the height of the plane section. Then, we have:

h/H = (side length of smaller square)/(side length of larger square)

= √(2)/2

Solving for h, we get:

h = (√(2)/2) * H

The area of the plane section is then:

A = (side length of smaller square)²

= (√2)/2 * side length of larger square)²

= (√(2)/2)² * (side length of larger square)²

= (1/2) * (side length of larger square)²

Since the side length of the larger square base is given, we can substitute it in and simplify to get:

A = (1/2) * (12)² = 72 square units

As a result, the resultant two-dimensional form is a square with 72 square units of area.

To know more about the Pyramid, here

https://brainly.com/question/12664474

#SPJ4

A large rectangular prism is 5 feet long, 3 feet wide, and 4 feet tall. A small rectangular prism is 2.5 feet long, 1.5 feet wide, and 2 feet tall.
How many small prisms would it take to fill the large prism?
Write your answer as a whole number or decimal. Do not round.

Answers

The answer of the given question based on the  rectangular prism is , , it would take 8 small rectangular prisms to fill the large rectangular prism.

What is Rectangular prism?

A rectangular prism, also known as a rectangular parallelepiped, is a three-dimensional solid object that has six rectangular faces, with opposite faces being congruent and parallel. It is a special case of a parallelepiped in which all angles are right angles and all six faces are rectangles.

To find how many small rectangular prisms will fit inside the large rectangular prism, we need to calculate the volume of each prism and then divide the volume of the large prism by the volume of the small prism.

The volume of the large prism is:

V_large = length × width × height = 5 ft × 3 ft × 4 ft = 60  feet³

The volume of the small prism is:

V_small = length × width × height = 2.5 ft × 1.5 ft × 2 ft = 7.5  feet³

Dividing the volume of the large prism by the volume of the small prism, we get:

number of small prisms = V_large / V_small = 60 ft³ / 7.5 ft³ = 8

Therefore, it would take 8 small rectangular prisms to fill the large rectangular prism.

To know more about Volume visit:

https://brainly.com/question/29255732

#SPJ1

Y = 5/x, y = 5/x2, x = 3 Find the area of the region

Answers

The area of the region bounded by the curves y = 5/x and y = 5/x^2, and the vertical line x = 3 is approximately 7.385 square units.

To find the area of the region bounded by the curves, we need to first determine the points of intersection between them.

Setting the two given functions equal to each other, we have

5/x = 5/x^2

Multiplying both sides by x^2, we get

5x = 5

Solving for x, we get

x = 1

So the curves intersect at x = 1.

Next, we need to determine the limits of integration. The region is bounded by the vertical line x = 3, so we integrate from x = 1 to x = 3.

The area is given by

A = [tex]\int\limits^3_1[/tex] [(5/x) - (5/x^2)] dx

Using the power rule of integration, we get:

A = [5ln(3) + (5/3)] - [5ln(1) + (5/1)]

Simplifying, we get

A = 5ln(3) + (10/3)

A = 7.385 square units

Learn more about area here

brainly.com/question/28205913

#SPJ4

Footy. You play in an inter- school footy competition. Curiously, in one of the rounds the total number of points scored by each team is the same, so that all games are not only drawn, but also have the same final score. In that same round your team scored 1/13th of all goals and 1/15th of all behinds. How many teams play in the competition?

Answers

There are 195 games played in the competition.

Let the total number of points scored in each game be represented by the variable "x". Since a goal is worth 6 points and a behind is worth 1 point, we can write an equation in terms of "x":

6a/13 + b/15 = x

where "a" is the total number of goals scored and "b" is the total number of behinds scored by your team in the round.

Since all games have the same final score, we know that the total number of points scored in the round is equal to the number of games played times the final score:

x * number of games = total points scored

We also know that the total number of points scored in the round is equal to the total number of goals scored (by all teams) times 6 plus the total number of behinds scored (by all teams):

x * number of games = 6 * total number of goals + total number of behinds

Substituting the first equation into the second equation, we get:

(6a/13 + b/15) * number of games = 6 * total number of goals + total number of behinds

Simplifying this equation and solving for "number of games", we get:

number of games = 1170/(2a/13 + b/15)

Since the number of games must be an integer, we can see that 2a/13 + b/15 must be a divisor of 1170. The possible values of 2a/13 + b/15 are:

2/13 + 78/15 = 72/5

4/13 + 72/15 = 56/5

6/13 + 66/15 = 44/5

8/13 + 60/15 = 32/5

The only divisor of 1170 among these values is 72/5, which corresponds to a = 26 and b = 312. Therefore, the number of games played in the round is:

number of games = 1170 / [(2a/13) + (b/15)]

                              = 1170 / [(2*26/13) + (312/15)]

                              = 195

As a result, 195 games have been played in the competition.

To know more about the Game, here

https://brainly.com/question/27890331

#SPJ4

Under her cell phone plan, Bao pays a flat cost of $40.50 per month and $5 per gigabyte. She wants to keep her bill under $60 per month. Write and solve an inequality which can be used to determine

g, the number of gigabytes Bao can use while staying within her budget.

Answers

Answer:

40.50 + 5g < 60.00

5g < 19.50

g < 3.9 gigabytes

Linear
Relationships:Question 8
A cell phone provider will allow you to pay for a new
phone over time. They require a $50 initial payment and
then charge $25 per month. If this situation were
represented by a function, where y represents the total
cost of the phone and x represents number of months,
what would be the slope?

Answers

The required slope in the given situation is (C) 25.

What is the slope?

The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.

The slope is the ratio of the rise in height between two points to the fall in elevation between those same two points.

A line's slope reveals how steep it is.

As the slope rises, the line gets progressively steeper.

The slope becomes flatter as it becomes smaller.

The direction of the line—whether it is going up, down, horizontally, or vertically—is also revealed by the slope.

So, after multiplying the initial cost by the number of months, x, the monthly charge, 25, is then applied.

The function we have is: y = 25x + 50

Then, the slope is 25.

Therefore, the required slope in the given situation is (C) 25.

Know more about slope here:

https://brainly.com/question/3493733

#SPJ1

Correct question:

A cell phone provider will allow you to pay for a new phone over time. They require a $50 initial payment and then charge $25 per month. If this situation were represented by a function, where y represents the total cost of the phone and x represents the number of months, what would be the slope?

A) 0

B) 75

C) 25

D) 50

Mary worked from Monday to Saturday last week and bought lunch in the company’s restaurant every day. Her lunches cost a different amount every day. Each lunch cost a multiple of 20¢. The most expensive lunch of the week cost $7. 60 and the cheapest one cost $4. 40. Friday’s lunch cost exactly 1½ times as much as Wednesday’s lunch. Tuesday’s lunch cost $1. 20 more than Thursday’s lunch

Answers

The minimum total cost of Mary's six lunches is $30.40.

To approach this problem, we need to consider the cost of each lunch individually and then sum them up to get the total cost. Let's start by finding the cost of Wednesday's lunch. We know that Friday's lunch cost 1.5 times as much as Wednesday's lunch, so we can write:

Friday's lunch = 1.5 x Wednesday's lunch

We also know that each lunch costs a multiple of 20 cents, so we can write:

Friday's lunch = $x, where x is a multiple of 20 cents

Wednesday's lunch = $y, where y is a multiple of 20 cents

Combining these two equations, we get:

$x = 1.5y

Since we're looking for the minimum total cost, we want to minimize the cost of each lunch. The cheapest lunch costs $4.40, which is equivalent to 22 multiples of 20 cents. So we can write:

$4.40 ≤ y ≤ $7.60

Now, we can use the information about Tuesday's lunch to find the cost of Thursday's lunch. We know that Tuesday's lunch cost $1.20 more than Thursday's lunch, so we can write:

Tuesday's lunch = Thursday's lunch + $1.20

Again, each lunch costs a multiple of 20 cents, so we can write:

Tuesday's lunch = $z, where z is a multiple of 20 cents

Thursday's lunch = $w, where w is a multiple of 20 cents

Combining these two equations, we get:

$z = w + $1.20

Now, we have two equations and two unknowns (x and y) and (z and w). We can solve these equations simultaneously to find the cost of each lunch. We get:

x = 1.5y

z = w + $1.20

We can substitute the first equation into the second equation to get:

z = 1.5y + $1.20

Now we have three equations and three unknowns (x, y, and z). We also know that each lunch costs a multiple of 20 cents, so we can write:

x = $a, where a is a multiple of 20 cents

y = $b, where b is a multiple of 20 cents

z = $c, where c is a multiple of 20 cents

Substituting these values into our equations, we get:

$a = 1.5b

$c = b + $1.20

$4.40 ≤ b ≤ $7.60

We can solve for b by substituting the second equation into the third equation:

$c = b + $1.20

$b = c - $1.20

Substituting this value of b into the first equation, we get:

$a = 1.5(c - $1.20)

$a = 1.5c - $1.80

Now, we can substitute these values into our equation for the total cost of Mary's six lunches:

Total cost = $a + $b + $c + $d + $e + $f

Total cost = $1.5c - $1.80 + $c + $b + $b + $c + $d + $e

Total cost = $4c - $1.80 + $b + $d + $e

We want to minimize the total cost, so we want to minimize each term in the above equation. We know that the minimum value of b is $4.40, and we want to choose c, d, and e to be as close to $4.40 as possible. This will minimize the total cost. The maximum value of c is $7.60, so we can choose c to be $7.60. We can then choose d and e to be $4.40 each, since these are the minimum possible values.

Substituting these values into our equation for the total cost, we get:

Total cost = $4c - $1.80 + $b + $d + $e

Total cost = $4($7.60) - $1.80 + $4.40 + $4.40

Total cost = $30.40

To know more about total here

https://brainly.com/question/14286201

#SPJ4

Complete Question:

Mary worked from Monday to Saturday last week and bought lunch in the company's restaurant every day. Her lunches cost a different amount every day. Each lunch cost a multiple of 20¢.The most expensive lunch of the week cost $7.60 and the cheapest one cost $4.40.Friday's lunch cost exactly 1½ times as much as Wednesday's lunch. Tuesday's lunch cost $1.20 more than Thursday's lunch.

(a) What is the minimum total that Mary's six lunches last week could have cost?

profitability empirical rule with this dataset? why or why not. no, the measures the proportion of a movies budget recovered. a profitability less than 1 the movie did not make enough money to cover the budget, while a profitability greater than means means it made a profit. a boxplot of the profitability ratings of 136 movies that came out in 2011 is shown below. (the largest outlier is the movie 1 insidi high gross revenue.)

Answers

The empirical rule does not apply to this dataset because the empirical rule is used to describe data that is normally distributed.

The empirical rule is a statistical rule that states that for a normal distribution.

Approximately 68% of the data will fall within one standard deviation of the mean, 95% of the data will fall within two standard deviations of the mean, and 99.7% of the data will fall within three standard deviations of the mean.

The dataset is normally distributedThe dataset is normally distributed, determine if the empirical rule appliesThe empirical rule does not apply, identify an alternative method to describe the dataset

The empirical rule does not apply to this dataset because the empirical rule is used to describe data that is normally distributed.

This dataset does not appear to be normally distributed, as evidenced by the large outlier (1 Insidi High Gross Revenue).

For similar question on empirical rule:

https://brainly.com/question/31627334

#SPJ11

in the chi square test for independence, the null hypothesis and the research hypothesis select one: a. always contradict each other b. always agree with each other c. are never actually stated d. are usually both rejected

Answers

In "Chi-Square-test" for the inde-pendence, "re-search-hypothesis" and "null-hypothesis" always contradict each other, the Option(a) is correct.

In the "Chi-Square" test for independence, the "Null-Hypothesis" (H₀) assumes that there is no association between the two categorical variables being tested, while the research hypothesis (Hₐ) proposes that there is a significant association between the variables.

These hypotheses are mutually exclusive and contradictory to each other.

If the "null-hypothesis" is rejected based on the results of the chi-square test, it implies that there is evidence to support the "research-hypothesis",  which indicates that there is a significant association between the variables.

Conversely, if "null-hypothesis" is not rejected, it suggests that there is not enough evidence to support the "research-hypothesis", and the conclusion would be that there is no significant association between the variables.

Therefore, the correct option is (a).

Learn more about Chi Square Test here

https://brainly.com/question/14082240

#SPJ4

The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw is

Answers

The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw is 0.39.

What is probability?

The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, can be calculated using conditional probability.

P(A|B) = P(A and B) / P(B)

P(A and B) = P(T or P on second draw and F on first draw) = P(T on second draw and F on first draw) + P(P on second draw and F on first draw)

= (3/9) x (4/10) + (2/9) x (4/10) = 14/90

To find P(B), we know that it is 0.4.

Therefore, the conditional probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, is:

P(A|B) = P(A and B) / P(B) = (14/90) / 0.4 ≈ 0.39

So the probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, is approximately 0.39.

Learn more about probability, here:

https://brainly.com/question/30034780

#SPJ1

‼️WILL MARK BRAINLIEST‼️

Answers

One advantage of being able to see each individual data point in a graph when comparing two data sets is that it allows for a more detailed and nuanced analysis of the data.

What is correlation?

A statistical relationship in which a change in one variable is correlated with a change in the other is known as correlation. Causation, which describes a causal link between two variables in which a change in one variable directly causes a change in the other variable, is not implied by correlation. In other words, there might be a correlation without a cause. It is possible for two variables to be connected by coincidence or only because they both react to a third, underlying factor. To establish causality,

When comparing two data sets, one benefit of being able to view each individual data point on a graph is that it enables a more thorough and nuanced study of the data. We can spot any outliers or abnormalities that might be impacting the overall trend or pattern in the data by examining individual data points. The dispersion or concentration of values in each collection of data points can be compared as well, which may reveal differences or similarities between the sets that aren't immediately obvious from a summary statistic or broad trend.

Learn more about correlation here:

https://brainly.com/question/28898177

#SPJ1

a stone pyramid in egypt has a square base that measures 140 m on each side. the height is 91 m. what is the volume of the pyramid?

Answers

the volume of the pyramid is approximately 593,866.67 cubic meters.

To find the volume of the pyramid, we first need to use the formula for the volume of a pyramid, which is:

[tex]V = \frac{1}{3} * base area * height[/tex]

Since the pyramid has a square base, the base area can be found by multiplying the length of one side by itself:

base area = 140 m * 140 m = 19,600 m²

Now we can plug in the values for the base area and height into the formula:

V = (1/3) * 19,600 m^2 * 91 m

V = 1/3 * 1,781,600 m³

V = 593,866.67 m³

Therefore, the volume of the pyramid is approximately 593,866.67 cubic meters

learn more about volume of the pyramid,

https://brainly.com/question/17615619

#SPJ11

The volume of the pyramid is approximately 594,533.33 cubic meters.

To find the volume of a stone pyramid in Egypt with a square base that measures 140 meters on each side and a height

of 91 meters, you'll need to use the formula for the volume of a pyramid:

Volume = (1/3) × Base Area × Height

Calculate the base area by squaring the side length:

Base Area = Side × Side = 140 m × 140 m = 19,600 m²

Multiply the base area by the height:

Base Area × Height = 19,600 m² × 91 m = 1,783,600 m³

Multiply the result by (1/3) to get the volume:

Volume = (1/3) × 1,783,600 m³ = 594,533.33 m³ (rounded to two decimal places)

So, the volume of the pyramid is approximately 594,533.33 cubic meters.

for such more question on pyramid

https://brainly.com/question/30615121

#SPJ11

Kubin Company’s relevant range of production is 25,000 to 33,500 units. When it produces and sells 29,250 units, its average costs per unit are as follows: Average Cost per Unit Direct materials $ 8. 50 Direct labor $ 5. 50 Variable manufacturing overhead $ 3. 00 Fixed manufacturing overhead $ 6. 50 Fixed selling expense $ 5. 00 Fixed administrative expense $ 4. 00 Sales commissions $ 2. 50 Variable administrative expense $ 2. 00 Required: 1. For financial accounting purposes, what is the total amount of product costs incurred to make 29,250 units? 2. For financial accounting purposes, what is the total amount of period costs incurred to sell 29,250 units? 3. For financial accounting purposes, what is the total amount of product costs incurred to make 33,500 units? 4. For financial accounting purposes, what is the total amount of period costs incurred to sell 25,000 units? (For all requirements, do not round intermediate calculations. )


1. Total amount of product costs

2. Total amount of period costs incurred

3. Total amount of product costs

4. Total amount of period costs

Answers

For the relevant range of production of units total amount of product and period cost as per units are,

Total amount of product costs for 29,250 units is $687,375.

Total amount of period costs incurred for 29,250 units is $58,511.50

Total amount of product costs for 33,500 units is equal to $787,250.

Total amount of period costs for 25,000 units  is equal to $50,011.50.

Average Cost per Unit Direct materials  = $ 8. 50

Direct labor = $ 5. 50

Variable manufacturing overhead = $ 3. 00

Fixed manufacturing overhead = $ 6. 50

Fixed selling expense  = $ 5. 00

Fixed administrative expense = $ 4. 00

Sales commissions = $ 2. 50

Variable administrative expense = $ 2. 00

Total unit produced = 29,250 units,

Total product costs

= (Direct materials + Direct labor + Variable manufacturing overhead + Fixed manufacturing overhead) x Number of units produced

= ($8.50 + $5.50 + $3.00 + $6.50) x 29,250

= $23.50 x 29,250

= $687,375

The total amount of product costs incurred to make 29,250 units is $687,375.

Total period costs

= Fixed selling expense + Fixed administrative expense + Sales commissions + (Variable administrative expense x Number of units sold)

= $5.00 + $4.00 + $2.50 + ($2.00 x 29,250)

= $5.00 + $4.00 + $2.50 + $58,500

= $58,511.50

The total amount of period costs incurred to sell 29,250 units is $58,511.50

For the number of units produced changed to 33,500.

Total product costs

= (Direct materials + Direct labor + Variable manufacturing overhead + Fixed manufacturing overhead) x Number of units produced

= ($8.50 + $5.50 + $3.00 + $6.50) x 33,500

= $23.50 x 33,500

= $787,250

The total amount of product costs incurred to make 33,500 units is $787,250.

The number of units sold changed to 25,000.

Total period costs

= Fixed selling expense + Fixed administrative expense + Sales commissions + (Variable administrative expense x Number of units sold)

= $5.00 + $4.00 + $2.50 + ($2.00 x 25,000)

= $5.00 + $4.00 + $2.50 + $50,000

= $50,011.50

The total amount of period costs incurred to sell 25,000 units is $50,011.50.

Therefore, the total amount of the product and period cost for different situations are,

Total amount of product costs is equal to $687,375.

Total amount of period costs incurred is equal to $58,511.50

Total amount of product costs is equal to $787,250.

Total amount of period costs is equal to $50,011.50.

learn more about cost here

brainly.com/question/17927959

#SPJ4


The function S(d) = √9.8d estimates the speed, S, in meters/second (m/s),
of a tsunami based on the ocean depth, d, in meters (m).
Determine the speed, in (m/s), of a tsunami at the depth of 2145 m. Round your
answer to the nearest thousandth.

Answers

To find the speed of the tsunami at the depth of 2145 meters, you can use the given function:

S(d) = √(9.8 * d)

Plug in the value of d (2145 meters):

S(2145) = √(9.8 * 2145)S(2145) ≈ √(21001)S(2145) ≈ 144.917Rounded to the nearest thousandth, the speed of the tsunami at a depth of 2145 meters is approximately 144.917 m/s.

What is the equation of the line in slope-intercept form?

Answers

Answer:

y = 3/5x + 3

Step-by-step explanation:

points on the graph

(-5,0) and (0,3)


0- 3 = -3

-5 - 0 = -5

-3/-5= 3/5


y = 3/5x + B

use a point from the graph

3 = 3/5 x 0 + B

3 = 0 + B

3 -0 = 3

3 = B

check answer

(-5,0)

Y = 3/5 x -5 + 3

Y = -15/3 + 3

Y = -3 + 3

Y = 0

Making the equation true y = 3/5x + 3

Other Questions
10. If I am making money, is it risk-free or not? the most recent glacial stage of the pleistocene in north america was the Find the surface area of the composite figure. Round to the nearest tenth if necessary. One year ago, you purchased shares of Best Wings, Inc. stock at a price of $9.60 a share. The company pays an annual dividend of $0.10 per share. Today, you sold all of your shares for $13.04 a share. What is your total percentage return on this investment ?A. 34.79 percentB. 35.83 percentC. 27.15 percentD. 36.88 percentE. 34.79 percent 5. Two equal charges are situated in a vacuum 10.0cm apart, if they repel each other with a force of 0.5N, calculate the value of the charge on each. [4) = 9.0 x 10 I if a person applies 750 n of force to move an object 10 m, and they apply this force for 5 s, what is their power output? Help with algebra 2 homework A company issues bonds with a maturity of 4 years with a nominal value of Rp. 10,000,000.00 and an annual coupon rate of 12%, if the yield to maturity is 10%, then the appropriate price for the bonds is .. If x - 2 is a factor polynomial f(x), which of the following statements does NOT have to be true? a charge nurse informs a staff nurse that they will be admitting the next patient that arrives on the unit. the staff nurse states acceptance and then proceeds to tell the other nurses that the charge nurse is unfair. what type of A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of pie? Solve for s.q+1+s=P what is the probability that the larger of two continuous i.i.d. random variable will exceed the population median? stackage Write a summary about Flowers for Algernon by Daniel Keyes with details from the text in your on words the manager should have done a better job in balancing the need to improve operations with the need to BHP Billiton is the world's largest mining firm. BHP expects to produce 2.00 bilion pounds of copper next year, with a production cost of $0.90 per pound. a. What will be BHP's operating profit from copper next year if the price of copper is $1.00, $1.25, or $1.50 per pound, and the firm plans to sell all of its copper next year at the going price? b. What will be BHP's operating profit from copper next year if the firm enters into a contract to supply copper to end users at an average price of $1.20 per pound? c. What will be BHP's operating profit from copper next year if copper prices are described as in part (a), and the firm enters into supply contracts as in part (b) for only 50% of its total output? d. For each of the situations below, indicate which of the strategies (a), (b), or (c) might be optimal. a. What will be BHP's operating profit from copper next year if the price of copper is $1.00, $1.25, or $1.50 per pound, and the firm plans to sell all of its copper next year at the going price? The operating profits will be as follows: Price ($/lb) 1.00 1.25 1.50Operating profit ($ billion) ___ ___ ___(Round to two decimal places.) Fill in the blank with a vocabulary word that could work.1. Come5. Come2. Habla con6. Habla con3. Canta7. CantaIts 2 for each word When pouring a sterile liquid into a container on a sterile field, why does the nurse hold the bottle with the label facing the palm of the hand?A. The label is not sterile and will contaminate the field if it is splashed.B. The pour spout faces down when the bottle is held with the label facing the palm.C. The label may become illegible if it is splashed.D. The handgrips on the bottle are molded to fit correctly when the label is facing the palm. Chester worked for 8hour each day for 5days.He earned P2190.00.How much did he earn per hour? Samuel went to the grocery store and purchased cans of soup and frozen dinners. Each can of soup has 300 mg of sodium and each frozen dinner has 450 mg of sodium. Samuel purchased 5 more frozen dinners than cans of soup and they all collectively contain 6000 mg of sodium. Write a system of equations that could be used to determine the number of cans of soup purchased and the number of frozen dinners purchased. Define the variables that you use to write the system.