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3 years ago

A cube has an edge length of 4 inches. You double the side lengths. How many times greater is the volume of the new cube?

1 answer:

6 0

Original cube side length is s = 4 inches, so the vol. is 4^3 in^3, or 64 in^3 = s^3.

If we double the original side length, we get S = 2s, and the new volume
is S^3 = (2s)^3 = 8s^3 = 8(64 in^3) = 512 in^3.

Answer: the new cube has a volume 8 times greater than the original cube has.

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Answer:

Step-by-step explanation:

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3 years ago

Help pls asap!! No links.

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Answer:

Step-by-step explanation:

1. Do what is inside the parantheses

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2 years ago

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3 years ago

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What is 5/8 divided by 32

Citrus2011 [14]

First you need to convert 32 into a fraction, so just add 1 as the denominator; 5/8 ÷ 32/1. But you can't divide fractions, so multiply by the reciprocal. 5/8 · 1/32. You should get 5/256 as your answer. I hope that helped!

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3 years ago

The mean monthly car payment for 123 residents of the local apartment complex is $624. What is the best point estimate for the m

Natali [406]

Answer:

The best point estimate for the mean monthly car payment for all residents of the local apartment complex is $624.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

In this question:

We apply the inverse Central Limit Theorem.

The mean monthy car payment for 123 residents of the local apartment complex is $624.

So, for all residents of the local apartment complex, the best point estimate for the mean monthly car payment is $624.

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3 years ago