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alexdok [17]
3 years ago
15

The height of a pyramid is doubled, but its length and width are cut in half. What is true about the volume of the new pyramid?

Mathematics
2 answers:
matrenka [14]3 years ago
7 0

Answer with Step-by-step explanation:

The volume of a rectangular pyramid is given by:

V=l×b×h

Where l is the length,b is the width and h is the height

Now, l'=l/2

b'=b/2

and h'=2h

V'=Volume of new pyramid

   = l'×b'×h'

   = l/2×b/2×2h

  = lbh/2

  =V/2

Hence, Volume of new pyramid=2×Volume of old pyramid

Iteru [2.4K]3 years ago
3 0
It's 1/2 of the original volume.
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Answer:

\boxed {\boxed {\sf C. \ 200 \pi \ ft^3}}

Step-by-step explanation:

We are asked to find the volume of the cylinder. The formula for calculating a cylinder's volume is:

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<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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In which:

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The estimate and the sample size are given by:

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Then the bounds of the interval are:

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More can be learned about the z-distribution at brainly.com/question/25890103

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