1 Answer

Theactiveactor · Answer 1 · 2020-09-19T20:40:17+0000

Answer:

21.
$\sqrt{(-s)/(15) }$

22. 87.92

Explanation:

21. The quotient means division is going to happen between -s and 15. And then take the square root of that.

$\sqrt{(-s)/(15) }$

22. The equation for the volume of a cylinder is this:

$\pi r^(2) h$

The question gives you values for r, and h, so just substitute those values into the equation.

Here is the work:

$\pi r^(2) h\\\\=\pi 2^(2) (7)\\\\=\pi(4)(7)\\\\=\pi (28)$

They told us to use 3.14 for pi, so i will substitute pi with 3.14

$\pi (28)\\\\=3.14(28)\\\\=87.92$

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