1,5/2,25/4 6th term.

Answers

Answer 1

Answer:

3125

32

Step-by-step explanation:

[tex]formula = a {r}^{n - 1?} [/tex]

r=5

2

a=1

n=6

1×5 (6-1)

2

5 (5)

2

=3125

32


Related Questions

We have 2 squares. One square is shaded 2/12 and the other shaded square in the diagram is 2/15 shaded. How much of the total diagram is shaded?
A.0.148
B.0.148 repeated
C. 0.3
D.0.3 repeated

Answers

The correct answer is C. 0.3, which is equivalent to 3/10.

What are fractions?

A fraction is a mathematical representation of a quantity that expresses a part of a whole or a ratio between two quantities.

To find the total fraction of the diagram that is shaded, we need to add the fractions representing the shaded areas of the two squares.

Given that one square is shaded 2/12 and the other shaded square is 2/15, we can add these fractions:

2/12 + 2/15

To add fractions, we need to find a common denominator. The least common multiple (LCM) of 12 and 15 is 60, so we can use 60 as the common denominator for both fractions:

(2/12) + (2/15) = (2/12) * (5/5) + (2/15) * (4/4)

= 10/60 + 8/60

Now we can add the numerators:

= (10 + 8)/60

= 18/60

= 3/10

So, the total fraction of the diagram that is shaded is 3/10.

Hence, the correct answer is C. 0.3, which is equivalent to 3/10.

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Use custom relationships to create a graph, showing the solution region of the system of inequalities, representing the constraints of the situation. Did Mark and label it point represents a viable combination of guest School district is planning a banquet to honor his teacher of the year and raise money for the scholarship foundation. The budget to hold the banquet in a hotel room and miles is $3375 the venue can hold no more than 125 guest the cost is $45 per adult but only $15 per student because caterer offers a student discount discount

Answers

We can label the point (75, 50) as the optimal solution for the banquet, as it represents the maximum number of guests that can be invited while staying within the constraints.

What is banquet?

A banquet is a large formal meal that usually involves multiple courses and is served to a group of people on special occasions such as weddings, awards ceremonies, or fundraising events. Banquets often include speeches, presentations, and entertainment, and are typically held in a large venue such as a hotel ballroom, banquet hall, or conference center. Banquets can be hosted for a variety of purposes, such as to honor a special guest, celebrate an achievement, or raise money for a charitable cause.

To create a graph showing the solution region of the system of inequalities representing the constraints of the situation, we can use custom relationships to define the variables and constraints.

Let's define the variables:

Let x be the number of adult guests.

Let y be the number of student guests.

Now, let's write the system of inequalities representing the constraints of the situation:

The total number of guests cannot exceed 125: x + y ≤ 125

The cost of hosting the banquet cannot exceed $3375: 45x + 15y ≤ 3375

To graph this system of inequalities, we can plot the boundary lines of each inequality and shade the region that satisfies all the constraints.

The boundary lines of each inequality are:

x + y = 125 (the line that connects the points (0, 125) and (125, 0))

45x + 15y = 3375 (the line that connects the points (0, 225) and (75, 0))

To find the viable combinations of guests that satisfy all the constraints, we need to shade the region that is below the line x + y = 125 and to the left of the line 45x + 15y = 3375.

The resulting graph should look like this:

The point where the two lines intersect, (75, 50), represents the maximum number of adult guests (75) and the maximum number of student guests (50) that can be invited to the banquet while staying within the budget and venue capacity. Any point within the shaded region represents a viable combination of guests.

We can label the point (75, 50) as the optimal solution for the banquet, as it represents the maximum number of guests that can be invited while staying within the constraints.

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A fruit basket contains 12 apples and 7 pears. How many pears do you need to add to the basket to make the ratio of apples to pears as 2:3?

Answers

Answer:

35 pears

Step-by-step explanation:

To make the ratio of apples to pears in the fruit basket 2:3, we need to find out how many pears we need to add.

The current ratio of apples to pears is 12:7. To make it 2:3, we need to multiply both sides of the ratio by a common factor that will transform 12 into 2 and 7 into 3.

Let's find that common factor:

12 : 2 = 6

7 : 3 = 2.333...

Since 12 can be transformed into 2 by dividing by 6, and 7 can be transformed into 3 by multiplying by 2, the common factor is 6.

Now, let's multiply both sides of the original ratio by 6:

12 * 6 : 7 * 6 = 72 : 42

So, the ratio of apples to pears after adding the appropriate number of pears to the basket to make it 2:3 would be 72:42.

To find out how many pears we need to add, we can subtract the current number of pears (7) from the desired number of pears (42):

42 - 7 = 35

Therefore, we need to add 35 pears to the basket to make the ratio of apples to pears 2:3.

Can you help me please

The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain after 2000 years? ---------

Answers

After 2000 years, approximately 182.41 mg of Radium-226 will remain in the sample.

What is half life?

The time required for the concentration of a particular reactant to reach 50% of its initial concentration (i.e. the time required for the reactant concentration to reach half of its initial value) is defined as the half-life of a chemical process. It is commonly represented in seconds and is denoted by the sign 't1/2'.

The half-life of Radium-226 is 1590 years, which means that after each 1590 years, the amount of Radium-226 in a sample will reduce to half. After 2 half-lives (2 x 1590 years), the amount will reduce to one-fourth (1/2 x 1/2) of the original amount, and after 3 half-lives, it will reduce to one-eighth (1/2 x 1/2 x 1/2) of the original amount, and so on.

To calculate the amount of Radium-226 remaining after 2000 years, we need to divide the time by the half-life and then raise 1/2 to the power of the number of half-lives.

Number of half-lives = 2000 years / 1590 years per half-life = 1.25786 half-lives

Amount remaining = [tex](1/2)^{(1.25786)[/tex] x 300 mg

= 182.41 mg (rounded to two decimal places)

Therefore, after 2000 years, approximately 182.41 mg of Radium-226 will remain in the sample.

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PLEASE HELP FAST 35 POINTS


calculate (p o q) (0)

Answers

0 is the value of (p o q) (0) in function .

What are functions in mathematics?

Function, in mathematics, a formula, rule, or law that defines the relationship between one variable (the independent variable) and another (the dependent variable).

                                  Functions are ubiquitous in mathematics and essential in the natural sciences for formulating physical relationships. A function is a relationship between inputs, with each input associated with exactly one output. Each function has a domain and a codomain or scope. 

P(0) = 0

Q(0) = - 1

(P o q)(0)  =  P(0) * Q(0)

         = 0 * - 1

          = 0

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If PQRS is a rectangle, PR = 9x + 1, and QS = 13x - 11, find TR. (TR is half of the PR bisecter)​

Answers

Answer: the length of TR is 24.5.

Step-by-step explanation: 9x + 1 = 13x - 11

22 = 4x

x = 5.5

Presently that we know x, ready to discover the values of PR and QS:

PR = 9x + 1 = 9(5.5) + 1 = 49

QS = 13x - 11 = 13(5.5) - 11 = 56

Since TR is half of the PR bisector, ready to discover it by separating PR by 2:

TR = PR/2 = 49/2 = 24.5

Need help with this (SERIOUS ANSWERS ONLY)

Answers

Answer: d=10

Step-by-step explanation:

In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving AC > EF, given BC = EF. Upload the entire proof below.

Given:

BC = EF

Prove:

AC > EF



STATMENT REASON
1. 1.
2. 2. Betweenness
3. AC > BC 3.
4. 4.

Answers

The given information and the transitive property of inequalities, we can prove that [tex]AC[/tex] is greater than [tex]EF[/tex] .

What is the transitive property of inequalities?

Statement Reason

[tex]BC = EF[/tex] Given

Betweenness Given

[tex]AC > BC[/tex] Given

[tex]AC > EF[/tex] Transitive property [tex](3, 1)[/tex]

Explanation:

[tex]BC = EF[/tex] Given: Given statement that BC is equal to EF.

Betweenness Given: Given statement that states the concept of betweenness, where BC is between AC and EF.

AC > BC Given: Given statement that  [tex]AC[/tex] is greater than BC.

[tex]AC > EF[/tex] Transitive property: Using the transitive property, we can conclude that  [tex]AC[/tex] is greater than EF (based on statement 3 and 1).

Therefore, using the given information and the transitive property of inequalities, we can prove that AC is greater than [tex]EF[/tex]  .

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Briana helps her mother make a quilt The quilt is 6 feet wide and 12 feet long

Answers

Briana and her mother will need to measure and cut the fabric for the quilt. They will need to decide on a pattern and color scheme for the quilt. They will need to sew the pieces of fabric together to create the quilt top. They will need to layer the quilt top with batting and backing fabric and then quilt the layers together. Finally, they will need to bind the edges of the quilt.

A piano has a ratio of 6 black keys for every 15 white keys. Write a ratio to represent the ratio of white keys to black keys.

15 to 6
six over fifteen
6:15
15:21

Answers

Answer:

The answer is 15:6 or 15 to 6

Step-by-step explanation:

white=15

black=6

white ratio black

15:6

[4x2+(5+1)]÷2 can I please get help :)

Answers

7 bc 4 times 2 is 8 plus 5 is 13 plus 1 is 14 then divide by 2 is 7
For the second question if are reading a book and you don’t know the word you should look at the glossary

Find a formula for the exponential function passing through the points
(-3, 5/8 ) and (3, 40).

Answers

The exponential function is y=5.[tex]2^x[/tex].

What is exponential function?

A mathematical function called an exponential function is employed frequently in everyday life. It is mostly used to compute investments, model populations, determine exponential decline or exponential growth, and so forth.

Here the exponential function is [tex]y=ab^x[/tex]

Since (-3,5/8) is on the graph, -[tex]\frac{5}{8}[/tex]=[tex]ab^{-3}[/tex] -----> 1

Since (3, 40) is on the graph, 40=[tex]ab^3[/tex] ------> 2

So, [tex]\frac{ab^3}{ab^{-3}}=\frac{40}{\frac{-5}{8}}[/tex]

=> [tex]b^{3+3}=8\times8[/tex]

=> [tex]b^6=2^6[/tex]

=> b = 2

put b=2 into 2 then,

=> 40= [tex]a\times2^3[/tex]

=> 8a=40

=> a =5

Then the exponential function is y=5.[tex]2^x[/tex].

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14 points!! PLEASE HELP MARKING BRAINLIST

Answers

Answer:

x = 58.03°

Step-by-step explanation:

Given:

17 cm is the length of the hypotenuse9 cm is the length of the adjacent side

Solve for x:

cos x = adjacent / hypotenusex = [tex]cos^{-1}(\frac{adjacent}{hypotenuse})[/tex]

1. [tex]x=cos^{-1}(\frac{9}{17})=58.03[/tex]

Answer:

So, the measure of angle x is equal to 58.03.

6. WRITING IN MATH Describe why the
difference of squares pattern has no middle term
with a variable. Example w-121

Answers

The two middle terms, -11w and +11w, cancel each other out, leaving only the first and last terms. This is why there is no middle term with a variable in the factorization of the difference of squares pattern.

How do you find a middle term?

When expanding a binomial expression in the form of (a + b)ⁿ, the middle term can be found using the following formula:

Middle term coefficient = nC(k), where k = (n+1)/2 if n is odd, and k = n/2 or (n/2 + 1) if n is even. The middle term coefficient is then multiplied by the product of a raised to the power of (n-k) and b raised to the power of k.

The difference of squares pattern is a special algebraic pattern that arises when we factor a polynomial that is the difference between two perfect squares. For example,

x² - y² = (x+y)(x-y)

When we apply this pattern to the expression w - 121, we can rewrite it as:

w² - 11²

And, we can use the difference of squares pattern to factor it as:

(w + 11)(w - 11)

Notice that there is no middle term with a variable in this factorization. This is because when we multiply (w + 11)(w - 11), the middle term cancels out.

To see why this happens, let's expand the product:

(w + 11)(w - 11) = w² - 11w + 11w - 121

The two middle terms, -11w and +11w, cancel each other out, leaving only the first and last terms. This is why there is no middle term with a variable in the factorization of the difference of squares pattern.

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Winston made a batch of cookies to decorate. He wants to put one decorated cookie in a gift bag for each of 12 friends. He has 90 minutes to decorate the cookies and prepare the gift bags. After the cookies are decorated, it takes him 2 minutes to prepare each gift bag. Which inequality can be used to determine how many minutes Winston can take to decorate each cookie?​

Answers

This means that he can take up to 5.5 minutes to decorate each cookie and still have enough time to prepare the gift bags within the 90-minute time limit.

What is inequality?

In mathematics, an inequality is a statement that compares two values or expressions, indicating whether they are equal, not equal, greater than, less than, greater than or equal to, or less than or equal to each other. Inequalities are represented using symbols such as < (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to).

Here,

To determine how many minutes Winston can take to decorate each cookie, we need to use an inequality that takes into account the total time available and the time it takes to decorate each cookie and prepare each gift bag.

Let x be the number of minutes it takes Winston to decorate each cookie.

The total time Winston has available is 90 minutes, and he needs to decorate 12 cookies and prepare 12 gift bags. The time it takes him to prepare each gift bag is 2 minutes. Therefore, the total time it takes him can be expressed as:

Total time = Time to decorate 12 cookies + Time to prepare 12 gift bags

Total time = 12x + 12(2)

Total time = 12x + 24

To determine the maximum time Winston can take to decorate each cookie, we need to find the largest value of x that satisfies the total time constraint. Since he has exactly 90 minutes, we can use the inequality:

12x + 24 ≤ 90

Subtracting 24 from both sides, we get:

12x ≤ 66

Dividing both sides by 12, we get:

x ≤ 5.5

Therefore, the inequality that can be used to determine how many minutes Winston can take to decorate each cookie is:

x ≤ 5.5

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What was the mean number of goals scored?

Answers

Answer:

2.5 goals/game

Step-by-step explanation:

In order to find the mean we need to find the total of numbers and then divide them by the amount we have.

0,0,1,1,3,3,3,4,5,5

If you add these numbers together you get 25, if you divide 25 by ten then you end up with 2.5

PLEASE HELP!!!! Luke is training for a long-distance bike race. On Tuesday, after riding for 1 hour, he has travelled 5 miles along a straight highway. After 3 hours, he has travelled 17 miles. Write the equation of the line that models Luke’s bike ride. What does the x represent? What does the y represent?

Answers

Answer: y=6x-1

Step-by-step explanation:

y=6x-1

x represents the time luke has been riding(hours) and the y represents the distance he has travelled (miles)

The area of a rectangle gets reduced by 9 square units if its length is reduced by 5 units and the breadth is increased by 3 units. If we increase the length by 3 units and breadth by 2 units, th
e area is increased by 67 square units. Find the length and breadth of the rectangle.

Answers

Answer:

length = 17;  breadth = 9

Step-by-step explanation:

Let x = area of rectangle; a = length; b = breadth.

+)       a × b = x (1)

+)      (a - 5) × (b + 3) = x - 9 => x = ab + 3a - 5b - 15 + 9 (2)

+)      (a + 3) × (b + 2) = x + 67 => x = ab + 2a + 3b + 6 - 67 (3)

Replace (1) into (2) & (3):

[tex]\left \{ {{3a - 5b=6} \atop {2a+3b=61}} \right. = > \left \{ {{a=17} \atop {b=9}} \right.[/tex]

Lily has 4 cup of grape juice and Lela hqs 7 cup of orange juice they combine the juice to make punch juice how many 1/2 cup serving of punch juice can they make?

Answers

22. 4+7=11, but you want to only use half cups not whole, so multiply by 2

6. center (-2, 8), tangent to y = -4

Answers

The radius of the circle is 12, and the equation of the circle is:

(x + 2)² + (y - 8)² = 144

What is a circle?

It is the center of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.

To find the equation of a circle that is tangent to a horizontal line at a given point, we can use the standard form of the equation of a circle:

(x - h)² + (y - k)² = r²

where (h, k) is the center of the circle and r is the radius.

In this case, the center of the circle is (-2, 8), which gives us:

(x + 2)² + (y - 8)² = r²

To find the radius, we need to know where the circle intersects the y = -4 line. Since the circle is tangent to the line, the distance from the center of the circle to the line is equal to the radius.

The distance between a point (x, y) and a horizontal line y = k is given by |y - k|.

In this case, the distance between the center (-2, 8) and the line y = -4 is |8 - (-4)| = 12.

Therefore, the radius of the circle is 12, and the equation of the circle is:

(x + 2)² + (y - 8)² = 144

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Complete question:

What is the center at (-2, 8), tangent to the line y = -4?

Please help I’m confused

Answers

The intersection points in the function is (-4, 61)

What is the points of intersection to the function

To find the intersection points of two functions, we can set them equal to each other and solve for x. Substituting x = -4, we have:

4(-4)² + 3(-4) + 3 = (-4)³ + 7(-4)² - 3(-4) + d

Simplifying, we get:

64 - 12 + 3 = -64 + 112 + 12 + d

d = -77

So the two functions intersect at x = -4 and y = 61. Therefore, the only intersection point is (-4, 61).

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Working with Actual Interest Earned
Daniela puts $550 in a CD that earns 3.5% APR, compounded quarterly,
for 2 years. She is taxed at a rate of 15% on the interest she earns.
The total amount of interest is $33.75.
What percentage of the original principal is this?

Answers

We can use the procedures below to calculate what proportion of the original principal the overall amount of interest represents. This total amount of interest received corresponds to about 5.34% of the initial investment.

What is an interest?

Divide the principal even by rate of interest, the time period, and other factors to arrive at simple interest. Simple return Equal principal + interests + hours is the marketing formula.The most typical technique to figure out interest is to use a portion of the principal sum. He would only pay his share of the 100% interest, for example, if somebody borrows $100 from the a partner and pledges to repay the loan with 5% interest. $x (0.05) = $5. When, you must pay interest.when you lend money after borrowing it and adding interest. Interest is often determined as an indicator of the overall of the loan total. The interest rate of the loan is the name given to this percentage.

Determine the total interest that was earned in Step 1.

It states that $33.75 was earned in interest overall.

Step 2: Determine the interest generated before to taxes.

The sum of the interest earned after tax can be determined by dividing the entire sum of the interest by (1 + rate of taxation), where the rate of tax is given as a decimal. Daniela was subject to a tax of 15% on the investment earnings. The tax rate in this instance is 15%, which really is equal to 0.15.

Interest gained before taxes is equal as $33.75 / (1 Plus 0.15), that results in a value of $29.35.

3. Determine the initial principal.

The $550 that Daniela first put into the CD is referred to as the original primary.

Compute the proportion of the initial principle in step four.

By dividing the sum of interest generated after tax by the original principal and multiplying the result by 100 as express it as a percentage, one can determine what proportion of the original principal the entire amount of interest represents.

(Interest paid before taxation / Original principal) / 100 equals the percentage of the original principal.

= ($possess / $550) w x 100

≈ 5.34%

Hence, the total interest earned is equivalent to roughly 5.34% of the initial capital.

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Solve the system of linear equations.
1/3x+y=1
2x+6y=6
Solve using a graph and explain the steps.

Answers

The solution to the system of linear equations is (x,y) = (0,1).

Describe Linear Equation?

A linear equation is an algebraic equation in which the highest power of the variable is one. It represents a straight line when graphed on a coordinate plane.

Linear equations are used to model many real-world situations, such as distance versus time, cost versus quantity, and temperature versus time. They are also used to solve problems in mathematics, physics, engineering, economics, and many other fields.

The slope of a line represents the rate of change of y with respect to x, and can be calculated by dividing the change in y by the change in x between any two points on the line.

In summary, a linear equation is a mathematical expression that represents a straight line and is used to model and solve problems in many fields.

To solve this system of linear equations:

1/3x + y = 1 --------(1)

2x + 6y = 6 --------(2)

We can use the elimination method, which involves adding or subtracting the equations to eliminate one of the variables.

Multiplying equation (1) by 6, we get:

2x + 6y = 6

Now we can subtract equation (1) from this to eliminate y:

(2x + 6y) - (2x + 2y) = 6 - 2

4y = 4

y = 1

Substituting y = 1 into equation (1), we get:

1/3x + 1 = 1

1/3x = 0

x = 0

Therefore, the solution to the system of linear equations is (x,y) = (0,1).

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Which expression represents the phrase The product of a number and ten decreased by eight.

A. n -8 x 10
B. 8n -10
C. 10xn8
D. 10n - 8

Answers

The statement "The product of a number and ten decreased by eight" is represented by the correct equation D. 10n - 8.

What is a number's product?

A number's product is the outcome of multiplying it by another number.

What additional mathematical expressions are there?

Addition, subtraction, multiplication, division, exponents, and square roots are some other examples of mathematical expressions.

What is an exponent?

A mathematical action known as an exponent symbolizes the repeated multiplication of the same integer. It is represented by a tiny number above and to the right of a base number.

For instance, 23 signifies that the number 2 has been multiplied three times, for a result of 8.

The sentence "The product of a number and ten decreased by eight" is correctly expressed as D. 10n - 8.

With this formula, a number is multiplied by 10 first, and the result is then reduced by 8.

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if h(x) =x+2/x-2, then dy/dx= ?​

Answers

To find dy/dx, we can use the quotient rule:

dy/dx = [(x - 2)(1) - (x + 2)(1)]/(x - 2)^2

Simplifying the numerator:

dy/dx = (-4)/(x - 2)^2

So the derivative of h(x) with respect to x is -4/(x - 2)^2.

Answer: To find the derivative of the function h(x), we can use the quotient rule, which states that if f(x) = u(x) / v(x), then f'(x) = [v(x)u'(x) - u(x)v'(x)] / [v(x)]^2.

Using this rule, we can find the derivative of h(x) as follows:

h(x) = (x + 2) / (x - 2)

h'(x) = [(x - 2)(1) - (x + 2)(1)] / (x - 2)^2 // apply the quotient rule and differentiate numerator and denominator

h'(x) = (-2 - 2x) / (x - 2)^2

Therefore, the derivative of h(x) is h'(x) = (-2 - 2x) / (x - 2)^2.

Step-by-step explanation:

if L(x) =sinx-cosx, then dxy=?​

Answers

The derivative of L(x) with respect to x is: d/dx [L(x)] = cosx + sinx

Differentiating the function L(x)

Given that

L(x) = sin(x) - cos(x)

To find dy/dx for the function L(x) = sinx - cosx, we need to take the derivative of L(x) with respect to x:

d/dx [L(x)] = d/dx [sinx - cosx]

Using the derivative rules, we can find the derivative of sinx and cosx:

d/dx [sinx] = cosx

d/dx [cosx] = -sinx

Therefore, the derivative of L(x) with respect to x is:

d/dx [L(x)] = cosx + sinx

So, dy/dx for L(x) is cosx + sinx.

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A department store manager has monitored the number of complaints received per week about poor service. The probabilities for numbers of complaints in a week, established by this review, are shown in the table. Answer Number of complaints 012 3 4 5 Probability 0.13 0.21 0.44 0.070. 0.06 0.09Save your answer What is the variance of complaints received per week? Please round your answer to the nearest hundredth Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.

200 word answer

Answers

To calculate the variance of complaints received per week, we first need to find the mean or expected value of the number of complaints. This can be calculated by multiplying the number of complaints in each category by its corresponding probability, and then adding up the results.

Expected value = (0 x 0.13) + (1 x 0.21) + (2 x 0.44) + (3 x 0.07) + (4 x 0.06) + (5 x 0.09) = 2.54

Next, we can use the following formula to calculate the variance:

Variance = Σ[(x - µ)²P(x)]

where Σ = sum, x = number of complaints, µ = expected value, and P(x) = probability.

Using this formula and the probabilities given in the table, we get:

Variance = (0 - 2.54)²(0.13) + (1 - 2.54)²(0.21) + (2 - 2.54)²(0.44) + (3 - 2.54)²(0.07) + (4 - 2.54)²(0.06) + (5 - 2.54)²(0.09) = 1.4856

Rounding this answer to the nearest hundredth, we get a variance of 1.49.

In conclusion, the variance of complaints received per week is 1.49, meaning that the number of complaints is quite spread out around the mean, which is 2.54. This could indicate that the department store has some variability in its service quality, as the number of complaints can vary widely from week to week.

Write an expression for the total length of the line segments, and simplify it. z z 8 and x x x

Answers

None of the given numbers make the equation 8/y² + 2 true

What is algebra?

Algebra is a branch of mathematics that deals with mathematical operations and symbols used to represent numbers and quantities in equations and formulas. It involves the study of variables, expressions, equations, and functions.

To solve this problem, we can substitute each of the given numbers (0, 1, 2, 3, 4) for y in the equation 8/y² + 2 and see if the equation is true.

Substituting y=0 would make the denominator of the fraction zero, which is undefined, so y=0 is not a valid choice.

Substituting y=1 would give us:

8/1² + 2 = 8 + 2 = 10

So, 1 is not the answer.

Substituting y=2 would give us:

8/2² + 2 = 8/4 + 2 = 2 + 2 = 4

So, 2 is not the answer.

Substituting y=3 would give us:

8/3² + 2 = 8/9 + 2 = 0.888 + 2 = 2.888

So, 3 is not the answer.

Substituting y=4 would give us:

8/4² + 2 = 8/16 + 2 = 0.5 + 2 = 2.5

So, 4 is not the answer.

Therefore, none of the given numbers make the equation 8/y² + 2 true.

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A satellite calculates the distances and angle shown in the figure below (not to scale).Find the distance between the two cities. Round to the nearest tenth.

Answers

The distance between city A and city B is approximately 442.3 km.

What is the law of cosine?

The Law of Cosines, also known as the Cosine Rule, is a mathematical formula that relates the lengths of the sides of a triangle to the cosine of one of its angles. Specifically, it states that:

c² = a² + b² - 2ab cos(C).

We can use the Law of Cosines to find the distance between City A and City B. Let's call this distance d.

From the information given, we know that:

The distance between the satellite and city A is 450 km.

The distance between the satellite and city B is 340 km.

The angle between city A, the satellite, and city B is 1.5 degrees.

Using the Law of Cosines, we have:

d² = 450² + 340² - 2(450)(340)cos(1.5)

d² = 202500 + 115600 - 2(450)(340)cos(1.5)

d² = 318100 - 122328.8

d² = 195771.2

d = √195771.2

d ≈ 442.3

Therefore, the distance between city A and city B is approximately 442.3 km (rounded to the nearest tenth).

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the difference of 25 and a number?

Answers

Answer: 30 and 5

Step-by-step explanation:

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