Helpppppppp plsss ASAP math look at picture for details

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Answer 1

i believe the answer is 8384 and to the power or 4in

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X 6.4.7-T
Question Help
Assume that females have pulse rates that are normally distributed with a mean of j = 74.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below.
a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 70 beats per minute and 78 beats per minute.
The probability is
(Round to four decimal places as needed.)
Enter your answer in the answer box and then click Check Answer
2 parts
remaining

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Let X be a random variable denoting pulse rates of females as described, with mean µ = 74.0 bpm and standard deviation σ = 12.5 bpm. Then

P(70 < X < 78) = P((70 - µ)/σ < (X - µ)/σ < (78 - µ)/σ)

… = P(-0.32 < Z < 0.32)

… = P(Z < 0.32) - P(Z < -0.32)

… ≈ 0.6255 - 0.3745

… ≈ 0.2510

where Z is normally distributed with mean 0 and s.d. 1.

• • •

Next, you sample 25 females from the population and want to find the probability that their average falls between 70 and 78 bpm. Let [tex]X_i[/tex] denote the pulse rate of the i-th woman from the sample, and let Y be the random variable for the sample mean; that is,

[tex]Y=\displaystyle\sum_{i=1}^{25}\frac{X_i}{25}[/tex]

Recall that a sample of size n taken from a normal distribution with mean µ and s.d. σ has a mean that is also normally distributed with mean µ and s.d. σ/√n.

The mean stays the same, µ = 74.0, but now the s.d. is σ/√n = σ/5 = 2.5. So we have

P(70 < Y < 78) = P((70 - µ)/(σ/5) < (Y - µ)/(σ/5) < (78 - µ)/(σ/5))

… = P(-1.6 < Z < 1.6)

… = P(Z < 1.6) - P(Z < -1.6)

… ≈ 0.9452 - 0.0548

… ≈ 0.8904

What is the volume of the composite figure?

Answers

Answer

180 inch² bottom / 192 inch²( top)

Step-by-step explanation:

5x3=15

15x12=180

4x4= 16

16x12=192

A random sample of house sizes in major city has a sample mean of

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Answer:

A random sample of house sizes in major city has a sample mean of ¯x=1204.9 x ¯ = 1204.9 sq ft and sample standard deviation of s=124.6 sq ft. Use the Empirical Rule to determine the approximate percentage of house sizes that lie between 955.7 and 1454.1 sq ft.:

The total length of a road trip was 15.6 hours. If highway signs are posted every 0.06 hours, including one at the end of the road trip, how many highway signs will there be on the road trip?

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Answer:

The answer is 260.

Step-by-step explanation:

15.6/.06=260.

write down the street name used on this statement

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? there isn’t a picture or anything attached

please please help!!

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Answer:

A family buys 6 tickets to a show. they also pay a $3 parking fee. they spend $27 total.

What is the unit rate for the following rate: 5 pounds of potatoes costs $10

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Answer:

$2 per round of potatoes

Step-by-step explanation:

$10/5 pounds of potatoes= $2

Decide whether 2x+8 and 2(x+4)+4 are equivalent expressions. Explain how you know

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Answer:

2x+8 and 2(x+4)+4 are not equivalent expressions

Step-by-step explanation:

Firs we need to expand 2(x+4)+4 using the distributive law as shown;

2(x+4)+4

=2(x) + 2(4) + 4

= 2x + 8 + 4

= 2x + 12

Since the result is not equivalent to 2x+8 hence 2x+8 and 2(x+4)+4 are not equivalent expressions

Find the total surface area of the cylinder below.

Answers

Answer:

83.54 in²

Step-by-step explanation:

Brₐinliest plz

Help me pleaseeee!!!! PLEASEEE

Answers

Answer:multiply each side to each other

Step-by-step explanation:yea

Mina has 1/2 of a bag of popcorn. She eats half of her popcorn. How much popcorn does Mina have left?

b.1/8 of a bag

c.1 bag

c.1/4 of a bag

d.1/2 of a bag
no links k

Answers

Answer:

c.1/4 of a bag

cuz half of 1/2 is 1/4

Find f. (Use C for the constant of the first antiderivative and D for the constant of the second antiderivative.) f ''(x) = 2x + 5ex

Answers

Answer:

Step-by-step explanation:

f ''(x) = 2x + 5e^x

f '(x) = x² + 5e^x + D

f (x) = 1/3 x³ + 5e^x + C

Which of the fractions below is closest to zero?
a. 1/2
b. 1/6
c. 1/9
d. 1/12

Answers

Answer:

d.) 1/12

Step-by-step explanation:

As it is equal to 0.083 and it is nearest to zero

Answer:

d. 1/12

Step-by-step explanation:

Since all of the fractions are positive and you want the one closest to 0, you need to find the smallest fraction. With fractions, especially when all of the numerators are 1, the larger the denominator becomes, the smaller the fraction. 12 is the largest denominator; therefore, 1/12 must be the smallest fraction. Which makes 1/12 the closest to 0.

Kevin collects rain water in a container shaped like a rectangular prism. After a thunderstorm, he notices the container is two-thirds of the way full. How much rain water is in the container?

Answers

Answer:

Step-by-step explanation:

Each side of quadrilateral TVWX is tangent to circle Y. Find the perimeter of the quadrilateral.

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9514 1404 393

Answer:

25.6

Step-by-step explanation:

The sum of opposite sides of the circumscribing quadrilateral is half the perimeter. Here, the opposite sides TV and WX both are shown, so the perimeter is ...

P = 2(TV +WX) = 2(4.5 +8.3) = 2(12.8) = 25.6 . . . units

The perimeter of the quadrilateral is 25.6 units.

Steve sold 36fruit baskets for a school fundraiser. Edie sold 25% of the number of baskets that Steve sold

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Answer:

Edie sold 9 fruit baskets

Step-by-step explanation:

coefficent of 6x is what
x
6
1

Answers

Answer:

Step-by-step explanation:

common sense

plz, help. I need it...

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Answer: (6, 3)

Step-by-step explanation:

44,652 divided by 47

Answers

Answer: 950. 042553

Step-by-step explanation: Calculator

A cylinder with a radius of 2 yd and a height of
3 yd.

Answers

Answer:

20 π

Step-by-step explanation:

The surface area of a cylinder is made up of 2 circles and its side.

To find the circles' areas, use the area formula for a circle: A = π.

Since our radius is 2 yd, we can substitute r = 2 into this formula.

A = π = 4π

Now remember, this is only the area of once circle. Multiply 4π by 2 to get the area of both circles: 8π.

Now we need to find the surface area of the side.

If we flatten it out, we can see that the side is actually a curled up rectangle.

The length is the circumference of the circle and the width is the height of the cylinder.

To find the circumference, use the circumference formula for a circle: C = 2πr.

Substitute r = 2 into the formula.

C = 2π2 = 4π

Now that we know that the length is 4π, we can multiply the length by the width to find the area of the cylinder's side.

l = 4π

w = 3

A = lw = 4π * 3 = 12π

Finally, we can add the areas of the circles and the side to get the total surface area.

8π + 12π = 20π

And that is your answer!

Please mark as Brainliest! :)

The answer is 20 but mark the other dude Brainly

Are these ratios equivalent?
1 teacher to 9 students
5 teachers to 45 students

Answers

Answer: yes the ratios 1:9 and 5:45 are equivalent.

Step-by-step explanation:

1:9*5:5=5:45

U got any more math questions that I can answer? I’m really bored and I have to stay busy!

NEEDEDASAP PLEASE HELP I WILL GIVE BRAINLIEST

Answers

Answer:

16. 150ft

17. 120ft

18. 14sq in

19. 12ft

20. 100miles

21. 87ft

22. 24in 23. 31in

Step-by-step explanation:

brainliest?

NO FILES I WILL MARK YOU IF RIGHT I ASKED THIS FIVE TIMES ALL I GET IS SCAM FILES!!!!!!!!!!!!! PLZZZZZZ HELP

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Answer:

the answer is the same as D 124 degrees

Step-by-step explanation:

Answer: The answer is 90°

Step-by-step explanation:

solve for 5 points, will give brainlist

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Answer:

i know that the first one is not equivlent but i dont know about the others

Step-by-step explanation:

pls answer a b and c

Answers

Answer:

Given

r = 1.6 cmh = 6.2 cm

Volume of the half-sphere:

V/2 = 1/2*4/3*πr³ = 2/3*3.14*1.6³ = 8.6 cm³ (rounded)

Volume of the cylinder:

V = πr²h = 3.14*1.6²*6.2 = 49.8 cm³

Volume of the figure:

V = 8.6 + 49.8 = 58.4 cm³

There are 13 students in the class if every student in the class recycled one piece of paper each school day for the whole school year how many pieces of paper would get recycled versus go in the trash? (There are 172 school days per school year)

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Answer:

dont know the answer but as i see, 13 student in class and each have 1 peice so 13 per day. you said 172 days so, 172 multiply 13 is 2236. its your answer

The question is on the problem no links please I will give brainliest

Answers

Answer:

54 cm ^ 2, 75.6 cm ^ 2, 129.6 cm ^ 2

Step-by-step explanation:

Equation for a triangle is A = (1/2) * b * h

Area of small triangle on the left: 0.5 * 9 * 12 = 54 cm ^ 2

Area of small triangle on the right: 0.5 * 12.6 * 12 = 75.6 cm ^ 2

Area of entire triangle: 54 + 75.6 = 129.6 cm ^ 2

help. Set up an equation in use it to solve for X

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Answer:

4x+3=83

-3:-3

-----------------

4x=80

x=20

Step-by-step explanation:

PLEASE PLEASE PLEASE HELPPPPP

Answers

Answer:

Step-by-step explanation:

B beacuse I did this before..

Logarithmic Functions have what type of asymptote?
O Horizontal
O Vertical

Answers

Answer:

Both the square root and logarithmic functions have a domain limited to xx-values greater than 00. However, the logarithmic function has a vertical asymptote descending towards −∞−∞ as xx approaches 00, whereas the square root reaches a minimum yy-value of 00. The range of the square root function is all non-negative real numbers, whereas the range of the logarithmic function is all real numbers.

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