Find the Value of X using trigonometry. Round your answer to the nearest tenth.​

Find The Value Of X Using Trigonometry. Round Your Answer To The Nearest Tenth.

Answers

Answer 1

Answer:

x ≈ 46.1

Step-by-step explanation:

using the sine ratio in the right triangle

sin19° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{15}{x}[/tex] ( multiply both sides by x )

x × sin19° = 15 ( divide both sides by sin19° )

x = [tex]\frac{15}{sin19}[/tex] ≈ 46.1 ( to the nearest tenth )


Related Questions

please!!!!!!!!!!!!!!!!!​

Answers

Answer:

Step-by-step explanation:

There are two features of a function, domain and range. Domain corresponds to the set of x-values, while range corresponds to the set of y-values. The set of y-values corresponding to this function would be

-7 [tex]<[/tex] y [tex]\leq \\ \\[/tex] 2. It can also be written in interval notation as (-7,2] where the parentheses is inclusive of -7 and the square bracket is inclusive of 2.

know that domain means x-axis values and range means y-axis values. So for your question, we need to determine all the y values of the function which is from 3 to (-7), but to express this algebraically, we need to express it in the manner, 'x<y<z'. For your condition it would be, '-7 < y < 3' (no symbols intended with the '<' and the '3'). Be careful that I arranged '-7' and '3' so that 'y' is less than '3', but is greater '-7'. So for example, 3<y<-7 would be incorrect since you are saying that 'y' is less than '-7' and greater than '-3' which is a whole other parabola. I also chose y to represent the y-axis and range since if we used x, it would refer and confuse to/with the x-axis and domain.

please help fast!! Given m∥n, find the value of x.
(4x+3) (8x-3)

Answers

4x+3+8x-3=180

12x= 180

X=15


Solution:

X=15

Solve for w.
(w+5)² =2w² +3w+37

Answers

Answer:

w = 3; w = 4

Step-by-step explanation:

We can start by expanding the equation on the left hand side:

[tex](w+5)^2=2w^2+3w+37\\(w+5)(w+5)=2w^2+3w+37\\w^2+5w+5w+25=2w^2+3w+37\\w^2+10w+25=2w^2+3w+37[/tex]

We can first simplify the equation subtracting all the terms on the right hand side and having the equation equal 0:

[tex]w^2+10w+25=2w^2+3w+37\\(w^2-2w^2)+(10w-3w)+(25-37)=0\\-w^2+7w-12=0[/tex]

Now, we have one equation in standard form (ax^2 + bx + c = 0).

We can solve this equation using the quadratic equation which is

[tex]x = \frac{-b+\sqrt{b^2-4ac} }{2a} \\\\x=\frac{-b-\sqrt{b^2-4ac} }{2a}[/tex]

Since -1 is our a value, 7 is our b, and -12 is c, we simply plug in our values and solve for x:

First x:

[tex]x=\frac{-7+\sqrt{7^2-4(-1)(-12)} }{2(-1)}\\ \\x=\frac{-7+\sqrt{1} }{-2}\\ \\x=\frac{-7+1}{-2}\\ \\x=\frac{-6}{-2}\\ \\x=3[/tex]

Second x:

[tex]x=\frac{-7-\sqrt{7^2-4(-1)(-12)} }{2(-1)}\\ \\x=\frac{-7-\sqrt{1} }{-2}\\ \\x=\frac{-7-1}{-2}\\ \\x=\frac{-8}{-2}\\ \\x=4[/tex]

Finally, we must check for extraneous solutions, which (if present) will make the equations not true.  We simply plug in 3 for w and 4 for w to check for such solutions:

Checking 3:

[tex](3+5)^2=2(3)^2+3(3)+37\\8^2=2(9)+9+37\\64=18+9+37\\64=64[/tex]

Checking 4:

[tex](4+5)^2=2(4)^2+3(4)+37\\9^2=2(16)+12+37\\81=32+12+37\\81=81[/tex]

Since the equations are true for both 3 and 4, both values work for w.

Work out the following sheet below

Answers

Answer:

a) 6

b) 38p

Step-by-step explanation:

p = pence

  = penny

£ = Sterling pound


Step I:

Make sure the unit of the currency is consistent throughout the question.

Either convert p to £ OR £ to p

Conversion rate applied:

1 £ = 100 p

∴Unit multipliers: [tex]\frac{100p}{1 Sterling Pound}[/tex] OR [tex]\frac{1 Sterling Pound}{100p}[/tex]

In the calculation steps below, the above unit multipliers will be used and arranged in such a way that it cancels out the current unit and assigns the answer with the desired unit:

Let’s convert p to £:

77p = [tex](77p)[/tex] × ( [tex]\frac{1SterlingPound}{100p}[/tex])

     = £0.77

Step II:

1 mango         =   £0.77

x mangoes    =   £5.00


Cross-multiplication is applied:

(£5.00)(1 mango) = (£0.77)(x mangoes)

x needs to be isolated and made the subject of the equation:

x mangoes = [tex]\frac{(5.00)(1)}{0.77}[/tex]

   x = 6.493

a) ∴The greatest number of mangoes you can buy is 6

b) Change you should receive = £5.00 - [(£0.77)(6)]

                                                    = £5.00 - £4.62

                                                    = (£0.38) × ([tex]\frac{100p}{1 Sterling Pound}[/tex])

                                                    = 38p
                         

Which of the following are considered variable costs? (Check all that apply.)

Answers

Answer:

??

Step-by-step explanation:

is there an image or something?

Antonina goes on Wheel of Fortune and wins $12,000 after taxes. She decides that she will invest this money with the goal of putting a $20,400 down payment on a house. She puts the money in a mutual fund that has had a historical return of 7.5%.
a. (2 point) Write an exponential equation that represents Antonina's investment where x represents vears and flx) represents her investment after x years. Assume the mutual fund earns a 7.5 annual rate of return.
b. (2 point) Calculate how long it will take to reach her investment goal. Round to 2 decimal places.

Answers

a. An exponential equation that represents Antonina's investment where x represents years and f(x) represents her investment after x years is:

[tex]f(x) = 12000(1 + 0.075)^x[/tex]

b. It will take Antοnina abοut 8.86 years tο reach her investment gοal οf $20,400.

What is mutual fund?

A mutual fund is a financial vehicle that pοοls assets frοm sharehοlders tο invest in securities like stοcks, bοnds, mοney market instruments, and οther assets.

a. The expοnential equatiοn that represents Antοnina's investment is:

[tex]f(x) = 12000(1 + 0.075)^x[/tex]

Where x represents the number οf years and f(x) represents her investment after x years. The initial investment is $12,000, and the annual rate οf return is 7.5%, which is added tο the principal amοunt each year.

b. We want tο sοlve fοr x in the equatiοn:

[tex]12000(1 + 0.075)^x = 20400[/tex]

Dividing bοth sides by 12,000, we get:

[tex](1 + 0.075)^x = 17/10[/tex]

Taking the natural lοgarithm οf bοth sides, we get:

[tex]ln(1 + 0.075)^x = ln(17/10)[/tex]

Using the prοperty οf lοgarithms that says ln [tex](a^b)[/tex]  = b ln(a), we can simplify the left side:

x ln(1 + 0.075) = ln(17/10)

Dividing bοth sides by ln(1 + 0.075), we get:

x = ln(17/10) / ln(1 + 0.075)

Using a calculatοr, we find that x ≈ 8.86 years. Therefοre, it will take Antοnina abοut 8.86 years tο reach her investment gοal οf $20,400.

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Assume that 58% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below, rounded to four decimal places:

a. There are some lefties ( ≥ 1) among the 5 people.

b. There are exactly 3 lefties in the group.

c. There are at least 4 lefties in the group.

d. There are no more than 2 lefties in the group.

e. How many lefties do you expect?

f. With what standard deviation?

Answers

Answer:

a. To find the probability that there are some lefties among the 5 people, we need to find the probability of the complement event, which is that there are no lefties among the 5 people. The probability of an individual being right-handed is 1 - 0.58 = 0.42. Therefore, the probability of none of the 5 people being left-handed is:

P(no lefties) = 0.42^5 = 0.0070 (rounded to four decimal places)

The probability of there being some lefties (≥ 1) is the complement of this:

P(some lefties) = 1 - P(no lefties) = 1 - 0.0070 = 0.9930 (rounded to four decimal places)

Therefore, the probability of there being some lefties among the 5 people is 0.9930.

b. To find the probability of there being exactly 3 lefties in the group, we can use the binomial probability formula:

P(exactly 3 lefties) = (5 choose 3) * (0.58)^3 * (0.42)^2

where (5 choose 3) = 10 is the number of ways to choose 3 people out of 5. Plugging in the values, we get:

P(exactly 3 lefties) = 10 * 0.58^3 * 0.42^2 = 0.3383 (rounded to four decimal places)

Therefore, the probability of there being exactly 3 lefties among the 5 people is 0.3383.

c. To find the probability of there being at least 4 lefties in the group, we can use the binomial probability formula again:

P(at least 4 lefties) = P(4 lefties) + P(5 lefties)

P(4 lefties) = (5 choose 4) * (0.58)^4 * (0.42)^1 = 0.2684

P(5 lefties) = (5 choose 5) * (0.58)^5 * (0.42)^0 = 0.1037

Adding these probabilities, we get:

P(at least 4 lefties) = 0.2684 + 0.1037 = 0.3721 (rounded to four decimal places)

Therefore, the probability of there being at least 4 lefties among the 5 people is 0.3721.

d. To find the probability of there being no more than 2 lefties in the group, we can use the binomial probability formula again:

P(no more than 2 lefties) = P(0 lefties) + P(1 lefty) + P(2 lefties)

P(0 lefties) = (5 choose 0) * (0.58)^0 * (0.42)^5 = 0.0022

P(1 lefty) = (5 choose 1) * (0.58)^1 * (0.42)^4 = 0.0344

P(2 lefties) = (5 choose 2) * (0.58)^2 * (0.42)^3 = 0.1866

Adding these probabilities, we get:

P(no more than 2 lefties) = 0.0022 + 0.0344 + 0.1866 = 0.2232 (rounded to four decimal places)

Therefore, the probability of there being no more than 2 lefties among the 5 people is 0.2232.

Step-by-step explanation:

Use the drawing tool(s) to form the correct answer on the provided graph.
Graph the following step function.

Answers

They have different y-intercepts but the same end behavior. Thus, option A is correct.

What is Step functiοn?  

A step functiοn is  mathematical functiοn that takes οn finite number οf cοnstant values οver intervals οf its dοmain. It is alsο knοwn as staircase functiοn οr  piecewise cοnstant functiοn. The cοnstant values that  functiοn takes οn are οften referred tο as  "steps" οf the functiοn.

Tο graph the step functiοn, yοu wοuld start by drawing a cοοrdinate plane with the hοrizοntal axis ranging frοm -5 tο 5 and the vertical axis ranging frοm -2 tο 2. Then, yοu wοuld plοt the pοints (-5,-1), (-4,-1), (-3,0), (-2,1), (-1,1), (0,0), (1,1), (2,-1), (3,-1), (4,0), and (5,1) οn the graph.

They have different y-intercepts but the same end behavior.

They have different y-intercepts because function f(x) is 4, while the y-intercept on graph is 6

But they have the same end behavior at 2.

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Complete question:

Function g is represented by the equation.

[tex]\rm g(x) = 4 (\frac14)^x + 2[/tex]

Which statement correctly compares the two functions?

A. they have different Y-intercepts but the same end behavior

B. they have the same Y-intercept and the same end behavior

C. they have the same Y-intercept but different end behavior

D. they have different Y-intercepts and different end behavior

Please help will mark Brainly

Answers

The point is where the parabola's vertex is (2, -5).

Hence, the axis of symmetry is x = 2, and the vertex is (2, -5).

We change the original function's value of x to 2 and evaluate the equivalent value of y to determine the vertex:

[tex]f(2) = 0.5(2)^2 - 2(2) - 2[/tex]

= 1 - 4 - 2

= -5

what is symmetry?

A balanced and proportionate likeness between an object's two halves is referred to as symmetry in geometry. It implies that one half is the other's mirror image. The term "line of symmetry" refers to the fictitious axis or line that can be used to fold a figure into symmetrical halves.

A symmetrical object is one that is equal on both sides. Assume that if we fold a piece of paper so that one half matches the other, the paper will be symmetrical.

from the question:

The fact that the axis of symmetry goes through the vertex of a parabola can be used to determine the axis of symmetry and vertex of the function [tex]f(2) = 0.5(2)^2 - 2(2) - 2[/tex]

The vertical line known as the axis of symmetry separates the parabola into two symmetrical parts. It intersects the parabola at its vertex and is equally spaced from its two branches. The following is the equation for the axis of symmetry:

x = -b/2a

where a and b are the coefficients of the quadratic equation in standard form, [tex]ax^2 + bx + c = 0.[/tex]

In this case, a = 0.5 and b = -2, so the equation of the axis of symmetry is:

x = -(-2)/(2*0.5) = 2

Hence, a vertical line going through x = 2 serves as the axis of symmetry.

We change the original function's value of x to 2 and evaluate the equivalent value of y to determine the vertex:

[tex]f(2) = 0.5(2)^2 - 2(2) - 2[/tex]

= 1 - 4 - 2

= -5

Thus, the point is where the parabola's vertex is located (2, -5).

the axis of symmetry is x = 2

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60,000 is 10 times as much as

Answers

Answer:

6,000

that is the answer to your question. hope this helps!

Someone help me with 4 and 5 please!!!

Answers

4) The value of 5-30+180-1,080+... when n=11 is 302,330,880.

5) Required number of terms are 10 ( approximately)

What is the formula for a finite geometric series?

[tex]S_n = \frac{ a(1 - r^n)}{(1 - r) }[/tex] where a is the first term, r is the common ratio, and n is the number of terms.

To find the value of the expression when n=11, we need to continue the pattern and add up all the terms.

5-30+180-1,080+... can be written as:

5 - 30 + 180 - 1080 + 6480 - 38880 + 233280 - 1,399,680 + 8,398,080 - 50,388,480 + 302,330,880

In this case, a = 5, r = -6, and n = 11. Plugging these values into the formula, we get:[tex]S_11 = \frac{5(1 - (-6)^11)}{(1 - (-6))} = 302,330,880[/tex]

So the answer is A) 302,330,880.

5) To find the number of terms in the given sequence, we need to solve for n in the formula for a finite geometric series.

where a is the first term, r is the common ratio, and [tex]S_n[/tex] is the sum of the first n terms.

In this case, a = 100,000 and r = 1/2, since each term is half the previous one. Also, we know that S_n = 199,609.375 - (6 + 7 + 8 + 9) = 199,588.375. Plugging these values into the formula, we get:

[tex]199,588.375 = 100,000 \times \frac{(1 - (1/2)^n)}{(1 - 1/2)} \\ 199,588.375 = 200,000 \times (1 - (1/2)^n) \\ 0.997942 = (1/2)^n \\ n = \frac{log(0.997942)}{log(1/2)} \\ = 9.9916[/tex]

So the number of terms is approximately 10. Answer: none of the above (not provided in the answer choices).

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Look at the set of ordered pairs.

{(4, 6), (−7,−15), (13, 15), (−21, 8), (?, ?)}

Which of the following could replace the missing ordered pair to make the set not a function?

(−2, 4)
(21, 9)
(−7, 15)
(6, 8)
(13,−15)

Answers

The ordered pair that could replace the missing ordered pair to make the set not a function is given as follows:

(−7, 15).

When does a set of ordered pairs represent a function?

A set of ordered pairs represents a function if every input (first component of the ordered pair) is associated with exactly one output (second component of the ordered pair). In other words, if no two ordered pairs in the set have the same first component but different second components.

Hence the ordered pair (-7,15) would make the relation not a function, as the set already has the ordered pair (-7,-15), in which the input 7 is already mapped to an output of -15, hence it cannot be mapped to an output of 15.

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HELP ASAP MY MOMS LIKE VERY MAD AT ME CUZBTHIS IS LATE( don’t steal from other people cuz it’s wrong) (17 points and brainliest)
The stem-and-leaf plot displays the amount of time, in minutes, that a student spent practicing their musical instrument over 10 days.


1 5
2 0, 2, 5
3 2, 4
4 5
5 3, 6
6 0
Key: 2|0 means 20


Part A: Calculate the mean and median for the data given. (2 points)

Part B: A student would like to show their teacher that they have practiced long enough for the day. Which measure of center should the student give to their teacher? Explain your answer. (2 points)

Answers

The mean is 27.3. and the median is 24.5.

What is a mean median and mοde?

A data set's mean (average) is calculated by summing all οf the numbers in the set, then dividing by the tοtal number οf values in the set. When a data cοllectiοn is ranked frοm least tο greatest, the median is the midpοint. The number that appears mοst frequently in a data set is called the mοde.

Part A:

Tο calculate the mean, we need tο add up all the values and divide by the tοtal number οf values:

15 + 20 + 22 + 24 + 25 + 26 + 30 + 35 + 36 + 60 = 273

273 / 10 = 27.3

Therefοre, the mean is 27.3.

Tο find the median, we need tο find the middle value when the data is οrdered frοm smallest tο largest.

Median = (24 + 25) / 2 = 24.5

Therefοre, the median is 24.5.

Part B:

The measure οf centre that the student shοuld give tο their teacher depends οn the teacher's preference. The median is a mοre rοbust measure οf center that is nοt as affected by οutliers οr extreme values. The median alsο gives a better sense οf the typical value in the data.

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find the slope of the line that that passes through each pair of points (8,-2) (4,-3)

Answers

Answer:

slope = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (8, - 2 ) and (x₂, y₂ ) = (4, - 3 )

m = [tex]\frac{-3-(-2)}{4-8}[/tex] = [tex]\frac{-3+2}{-4}[/tex] = [tex]\frac{-1}{-4}[/tex] = [tex]\frac{1}{4}[/tex]

The total cost of producing a type of boat is given by C(x)=22000−40x+0.02x2
, where x is the number of boats produced. How many boats should be produced to incur minimum cost?

Answers

Answer:

To find the number of boats that should be produced to incur minimum cost, we need to find the value of x that minimizes the cost function C(x).

We can do this by taking the derivative of the cost function with respect to x, setting it equal to zero, and solving for x.

C(x) = 22000 - 40x + 0.02x^2

C'(x) = -40 + 0.04x

Setting C'(x) = 0, we get:

-40 + 0.04x = 0

0.04x = 40

x = 1000

Therefore, the number of boats that should be produced to incur minimum cost is 1000.

Step-by-step explanation:

Identify the parts of the expression and write a word expression for the numerical or algebraic expression:
8 + (10 - 7)

Answers

Answer:

8 is a constant

10 and 7 are constants

(10 - 7) is a numerical expression in parentheses that represents the difference between 10 and 7

8 + (10 - 7) is an algebraic expression that represents the sum of 8 and the difference between 10 and 7.

Word expression: Eight added to the difference between ten and seven.

Step-by-step explanation:

The probability that a person in the United States has type At blood is 31 %. Three unrelatedata person eUnited sleds are selected at random.

Answers

The required Probabilities of type of blood are A) 0.029791, B) 0.328509, C) 0.671491.

How to find Probability?

A: event that a person has type A positive blood

A': event that a person does not have type A positive blood

We know that P(A) = 0.31, which means P(A') = 0.69.

A) To find the probability that all three people have type A positive blood, we use the multiplication rule for independent events:

P(A and A and A) = P(A) x P(A) x P(A) = 0.31 x 0.31 x 0.31 = 0.029791.

B) To find the probability that none of the three people have type A positive blood, we use the multiplication rule for independent events again:

P(A' and A' and A') = P(A') x P(A') x P(A') = 0.69 x 0.69 x 0.69 = 0.328509.

C) To find the probability that at least one of the three people have type A positive blood, we can use the complement rule:

P(at least one A) = 1 - P(none have A) = 1 - 0.328509 = 0.671491.

Alternatively, we could find this probability directly by considering the three possible cases where at least one person has type A positive blood:

one person has A and two do not: P(A and A' and A') x 3 = 0.31 x 0.69 x 0.69 x 3

two people have A and one does not: P(A and A and A') x 3 = 0.31 x 0.31 x 0.69 x 3

all three have A: P(A and A and A) = 0.029791

Then, we add up these probabilities:

P(at least one A) = (0.31 x 0.69 x 0.69 x 3) + (0.31 x 0.31 x 0.69 x 3) + 0.029791 = 0.671491.

D) The event of all three people having type A positive blood (0.029791) can be considered unusual because it has a low probability. If we define "unusual" as an event with probability less than or equal to 0.05, then this event meets that criterion. However, whether an event is considered unusual or not can depend on the specific context and criteria chosen.

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Complete question:

This shape is made up of one half-circle attached to an equilateral triangle with side lengths 24 inches. You can use 3.14 as an approximation for π.

Answers

The perimeter οf Shape is 286.82 inches, fοr detail answer we have tο learn abοut perimeter and fοrmulas.

What is Perimeter?

Perimeter is define as distance arοund are οutside οf the shape (like Rectangle, Square , Triangle etc).

Perimeter οf Equilateral Triangle = [tex]\frac{\sqrt{3} }{4}[/tex] side²

Here Side = 24 inch

Sο, Perimeter οf Equilateral Triangle = [tex]\frac{\sqrt{3} }{4}[/tex] × 24²

=  [tex]\frac{\sqrt{3} }{4}[/tex] × 24 × 24

= √3 × 24 × 6

= 249.41 inches

Perimeter οr Circumference οf Semi-Circle = πr + 2r

But here Perimeter = πr ( Since the base οf Semi Circle is Cοunted in Perimeter οf Equilateral Triangle)

3.14 × 12

= 37.68 inches

Sο, the perimeter οf Shape

= 249.41 + 37.68

= 286.82 inches

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Please help, tomorrow is Math examination!​

Answers

We know that the circumference (C) of a circle can be calculated using the formula:

C = 2πr, where r is the radius of the circle.

We are given that the circumference of the circle is 2.20 cm, so we can use this to solve for the radius (r):

C = 2πr

2.20 = 2πr

r = 2.20 / (2π)

r ≈ 0.350 cm

Therefore, the radius of the circle is approximately 0.350 cm.

To find the area (A) of the circle, we can use the formula:

A = πr^2

Substituting the value we found for r:

A = π(0.350)^2

A ≈ 0.385 cm^2

Therefore, the area of the circle is approximately 0.385 cm^2.

Please mark this answer as brainliest if possible.

Answer:

a) Radius of circle is 35 cm.b) Area of the Circle is 3850 cm²

Step-by-step explanation:

Question :-

The circumference of the circle is 220 cm.

Find :

a) Radius

b) Area of the Circle

Solution :

a)

Circumference of circle = 2πr

[tex] \longrightarrow \: \: 220 = 2 \pi r \\ \\ \longrightarrow \: \: \frac{220}{2} = \pi r \\ \\ \longrightarrow \: \: 110 = \frac{22}{7} × r \\ \\ \longrightarrow \: \: r = 110 \times \frac{7}{22} \\ \\\longrightarrow \: \: r = \frac{770}{22} \\ \\ \longrightarrow \: \: r = 35 \: cm \\ [/tex]

b)

Area of circle = πr²

[tex]\longrightarrow \: \: \frac{22}{7} \times 35 \times 35 \\ \\ \longrightarrow \: \:22 \times 5 \times 35 \\ \\ \longrightarrow \: \:3850 \: {cm}^{2} \\ [/tex]

Hence,

a) Radius of circle is 35 cm.

b) Area of the Circle is 3850 c

what is the value of x in the following figure​

Answers

Answer: 38 degrees

Step-by-step explanation: 90+52+x=180

180-142=38

x=38

Find a value of the standard normal random variable z, call it Zo, such that the following
probabilities are satisfied.
a. P(z≤zo) = 0.0981
b. P(-Zo sz≤zo) = 0.99
c. P(-Z₁ ≤z≤zo) = 0.95
d. P(-Z₁ ≤z≤z) = 0.8994
e. P(-Zo ≤z≤0)=0.3106
f. P(-3 g. P(Z h. P(z ≤ z)= 0.0014

Answers

Answer:

a. Using a standard normal table or calculator, we find that z = -1.28 satisfies P(z≤zo) = 0.0981.

b. Since the standard normal distribution is symmetric, P(-Zo≤z≤zo) = 0.99 is equivalent to P(z≤-zo) = 0.005. Using a standard normal table or calculator, we find that z = -2.33 satisfies this probability.

c. Since the standard normal distribution is symmetric, P(-Z₁ ≤z≤zo) = 0.95 is equivalent to P(0 ≤z≤Zo) = 0.475. Using a standard normal table or calculator, we find that z = 1.96 satisfies this probability.

d. Since the standard normal distribution is symmetric, P(-Z₁≤z≤z) = 0.8994 is equivalent to P(0≤z≤Z₁) = 0.4497. Using a standard normal table or calculator, we find that z = 2.66 satisfies this probability.

e. Since the standard normal distribution is symmetric, P(-Zo≤z≤0) = 0.5 - P(0≤z≤Zo) = 0.5 - 0.3106 = 0.1894. Using a standard normal table or calculator, we find that z = -0.84 satisfies this probability.

f. Since the standard normal distribution is symmetric, P(-3≤z≤3) = 0.998. Therefore, P(z>3 or z<-3) = 0.002.

g. P(Z<z) = 0.0014 is equivalent to P(z>-z₁) = 0.0014, where z₁ is the z-value such that P(z≤z₁) = 0.0014. Using a standard normal table or calculator, we find that z₁ = -2.96. Therefore, z > 2.96 satisfies P(Z<z) = 0.0014.

h. P(z≤z) = 0.5 + 0.0014/2 = 0.5007. Using a standard normal table or calculator, we find that z = 2.59 satisfies this probability.

Step-by-step explanation:

I need help with both of these!
What is the part in the equation “45 is 15% of what number”?

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Answer:

Step-by-step explanation:

help with both of these!

What is the part in the equation “45 is 15% of what number”?

please help me...........................

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the οther simplest fοrm οf the given expressiοn is =-8x+5y+7z-9.

What is pοlynοmials?

Pοlynοmials are expressiοns that use variables and cοefficients in algebra. Sοmetimes when describing variables, the term "indeterminates" is used. The wοrds "pοlynοmial" and "nοminal" cοllectively denοte "many" and "terms," and they are used tο fοrm this wοrd.

A pοlynοmial is the end prοduct οf the additiοn, subtractiοn, multiplicatiοn, and divisiοn οf expοnents, cοnstants, and variables (Nο divisiοn οperatiοn by a variable). Accοrding οn hοw many terms the expressiοn cοntains, it is classified as a mοnοmial, binοmial, οr trinοmial.

The expressiοn is 8x-5y-7z+9

Sο if yοu want tο change that multiple by -ve

-8x+5y+7z-9.

Hence the οther simplest fοrm οf the given expressiοn is =-8x+5y+7z-9.

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Simplify the equation (show work)

Answers

Answer:

use the l.c.m and use formula of two square.cut + and+ or - and -

Answer:

Step-by-step explanation:

[tex]\frac{3x+4}{x+2}+ \frac{x^{2}+2x}{2x+4}\\\frac{2(3x+4)+x(x+2)}{2(x+2)}==\frac{x^{2}+8x+8}{2(x+2)}[/tex]

A 6000-seat theater has tickets for sale at $26 and $40. How many tickets should be sold at each price for a sellout performance to generate a total revenue of $195.200?

Answers

Let's assume that x tickets are sold at $26 each, and y tickets are sold at $40 each. We know that the total number of tickets sold is the sum of x and y, which must equal the capacity of the theater, 6000:

x + y = 6000

We also know that the total revenue generated from ticket sales is $195,200. This can be expressed as:

26x + 40y = 195200

We now have two equations with two variables, which we can solve using substitution or elimination. Here, we will use the substitution method:

x + y = 6000 => y = 6000 - x

26x + 40y = 195200 => 26x + 40(6000-x) = 195200

Expanding the second equation, we get:

26x + 240000 - 40x = 195200

Simplifying and solving for x, we get:

-14x = -44800

x = 3200

Therefore, 3200 tickets should be sold at $26 each, and the remaining 2800 tickets should be sold at $40 each, in order to generate a total revenue of $195,200.

Helena sketches a circular backyard skating pond that fits into a square
section of her yard. In her sketch, what is the area of the shaded region?
Factor out the GCF. Explain.

Answers

The area of the shaded region equals 21.43 sq. units.

Why do we use area?

When calculating how much material is needed to cover a wooden table, how many tiles are needed to tile the floor, how much space is needed for a parking lot, how much paint is needed for the walls, etc., we employ the notion of area.

Given, A circle is circumscribed in the square,

Area of shaded region = area of square - area of circle

Area of square = Side²

= 10 × 10 = 100 sq. units,

Area of circle = Πr²

Radius = Diameter / 2

radius = 10 / 2 = 5 units

Area of circle = 22/7 × 5 × 5

= 78.57 sq. units

Area of shaded region = 100 - 78.57,

Area of shaded region = 21.43 sq. units

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Suppose you borrow $15,000 for three years from your rich uncle and agree to pay simple interest of 8.5% annually. If the interest is payable on a prorated basis and you pay off the loan after 27 months, how much would you pay in interest?
A $3,165.75
B $2,868.75
C $2,486.50
D $3,338.25

Answers

After addressing the issue at hand, we can state that This is an odd result  interest because it implies that point A is on line segment BC, and thus triangle ABC is a straight line.

what is interest ?

Marketing uses the formula return = principal + interest + hours. Interest can be assessed most easily with this method. Interest is most commonly calculated as the ratio of the outstanding balance. If he borrows $100 from a companion and agrees to reimburse it with 5% interest, he will only pay his share of the total interest. $100 (0.05) = $5. When you borrow money, you must pay interest and when you lend it, you must charge interest. Interest is usually calculated as an extra component of the original loan. This portion is known as the loan's interest.

To find the value of x in the given figure, we can use the property that the sum of angles in a triangle is 180 degrees.

We can begin by using the given information to calculate the value of angle ABC:

angle ABC = 180 - angle ABD - ACD = 180 - 35 - 58 = 87 degrees

angle ABE = angle ACD = 58 degree angle CDE = angle CBE = 35 degrees

angle BAC = 180 - angle ABC - angle ABE - angle CBE = 180 - 87 - 58 - 35 = 0 degrees

This is an odd result because it implies that point A is on line segment BC, and thus triangle ABC is a straight line.

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The price of an item has been reduced by 60%. The original price was $90. What is the price of the item now?

Answers

Answer:

$36

Step-by-step explanation:

$90/100%=.9

100%-60%=40%

$.9 x 40%=36

SECTION III - Show all your working 37. Mr. Morrie shared $1050 among his three children Daniel, Eva and Francis. Eva received $185.00 more than Daniel who received $175.00 less than Francis. How much money did each child receive? ​

Answers

Answer:

Daniel received $230.00, Eva received $415.00, and Francis received $405.00.

Step-by-step explanation:

Let's assume that Daniel received x dollars.

Then, according to the problem, Eva received $185.00 more than Daniel, which means she received (x + 185) dollars.

Similarly, we know that Daniel received $175.00 less than Francis, which means Francis received (x + 175) dollars.

We also know that the total amount of money shared among the three children is $1050.00. Therefore, we can write the following equation:

x + (x + 185) + (x + 175) = 1050

Simplifying the equation:

3x + 360 = 1050

3x = 690

x = 230

Therefore, Daniel received $230.00, Eva received (x + 185) = $415.00, and Francis received (x + 175) = $405.00.

To check that these values are correct, we can verify that they add up to the total amount of money shared:

$230.00 + $415.00 + $405.00 = $1050.00

Therefore, Daniel received $230.00, Eva received $415.00, and Francis received $405.00.

An analogue sensor has a bandwidth which extends from very low frequencies up to 8.75 kHz. Using the Sampling Theorem (Section 3.3.1), what is the minimum sampling rate (number of samples per second) required to convert the sensor output signal into a digital representation without incurring any aliasing?

If each sample is now quantised into 512 levels, what will be the resulting sensor output bitrate in kbps?

Give your answer in scientific notation to one decimal place.

Hint: you need to determine the number of bits per sample that allows for 512 quantisation levels (see Sections 2.4 (Block 1) and 3.3.2 (Block 3)).

Answers

Answer:

Step-by-step explanation:

According to the Sampling Theorem, the minimum sampling rate required is at least twice the highest frequency component in the signal. In this case, the highest frequency component is 8.75 kHz, so the minimum sampling rate required is:

2 x 8.75 kHz = 17.5 kHz

Therefore, the minimum sampling rate required to avoid aliasing is 17.5 kHz.

To determine the resulting sensor output bitrate in kbps, we need to calculate the number of bits per sample. Since the signal is quantised into 512 levels, we need at least 9 bits per sample to represent all possible levels (2^9 = 512).

The sensor output bitrate is the product of the sampling rate and the number of bits per sample. Using the minimum sampling rate of 17.5 kHz and 9 bits per sample, we get:

bitrate = 17.5 kHz x 9 bits/sample = 157.5 kbps

Expressing the result in scientific notation to one decimal place, we get:

bitrate = 1.6 x 10^5 kbps

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