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3 years ago

How can i find the volume of a rectangular prism

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

4 0

Answer:

Width x height x length

Step-by-step explanation:

You just multiply the width times the height times the length.

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A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not. Determ

Hunter-Best [27]

Answer:

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not.

This means that $n = 100, \pi = \frac{20}{100} = 0.2$

68% confidence level

So $\alpha = 0.32$ , z is the value of Z that has a pvalue of $1 - \frac{0.32}{2} = 0.84$ , so $Z = 0.995$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 - 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.16$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 + 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.24$

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

4 0

3 years ago

Explain how to graph y = 2

nydimaria [60]

Answer:

you draw a horizontal line going both directions starting at (0, 2)

Step-by-step explanation:

6 0

3 years ago

Can someone help with this math problem pleaseeee

erastovalidia [21]

<h3>Answer: Choice A</h3>

Explanation:

The square root undoes the squaring operation.

Think of a square that is 1 ft by 1 ft. Its area would be 1*1 = 1 sq ft.

Now imagine you told your friend "the area is 1 sq ft" and you didn't relay the side lengths. Your friend would use the square root to find the side length is 1 ft.

I'm not sure why your teacher is using plus minus notation when that is not correct. Saying $\sqrt{1} = \pm 1$ is not true. The result of a square root is simply one value only. If your teacher meant $\pm \sqrt{1} = \pm 1$ , then it would be a true statement; however, there's no need to involve negative numbers for this problem.

3 0

2 years ago

The length of a picture frame is 6 inches more than the width. For what values of x is the perimeter of the picture frame greate

castortr0y [4]

Answer:

The possible values of S are the values between 37 and 49. (Excluding 37 and 49)

Step-by-step explanation:

If the perimeter of the square must be greater than 148 inches but less than 196 inches.

And perimeter of a square = 4s

We intend to find the values of s such that:

148 < 4s

¹⁴⁸⁄₄ < ⁴ˢ/₄

37 < s

Also:

4s < 196

s < ¹⁹⁶⁄₄

s < 49

Therefore:

37 < s < 49.

The possible values of s are the values between 37 and 49. (Excluding 37 and 49.)

6 0

3 years ago

Which is the greatest number -6 2/3 , -6.6 , -6.06 , -6 2/5

kifflom [539]

The answer to the question would be -6.06

3 0

4 years ago