3 years ago

I need help I don't understand this?

1 answer:

6 0

If DG, EG and FG are perpendicular bisectors than: AG = BG = CG.By Pythagorean theorem:
BG² = DG² + BD²BG² = 5² + 12²BG² = 25 + 144 = 169BG = √169 = 13 = CG
Answer: CG = 13 cm.

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Look at the formula for the volume of a cylinder below.

scZoUnD [109]

$h = V / ( \pi r^2)$

Okay, so we already have the volume equation for a cylinder here.
$V = \pi r^2 h$
Since we need to find the height(h), we need to basically isolate it in the equation. To do that we just have to divide both sides by (pi * r^2), where we end up with:
$V / (\pi r^2) = h(\pi r^2) / (\pi r^2)$
then
$V / ( \pi r^2) = h$
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8 0

3 years ago

-9 - (18v - 5) = 2(7v - 16) - 3v

andrezito [222]

Answer:

v = 28/29

Step-by-step explanation:

- 9 - (18v - 5) = 2(7v - 16) - 3v

- 9 - 18v + 5 = 14v - 32 - 3v

- 18v - 14v + 3v = - 32 - 5 + 9

- 29v = - 28

v = -28 / -29