3 years ago

Help me out I’ll give a stars real answers only.

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

Answer:

Step-by-step explanation:

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Find rhe volume of a cylinder with a diameter of 10 inches and a height of 20 inches

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Since the diameter of the cylinder is 10, its radius is half that, or 5, thus

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius\\
h=height\\
-----\\
r=5\\
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3 years ago

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Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

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Step-by-step explanation:

Given that average of 3 numbers is 85.

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Let the third number = $x$

Formula for average is:

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Here, sum of numbers = $81+86+x =167+x$

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