A cylinder has a volume of 175pi cubic units and a height of 7 units. The diameter of the cylinder is

Question

goldphenoix · Answer

Do you know the formula for finding the volume of a cylinder?

anonymous · Answer

$$V = \pi \left( \frac{ d^2 }{ 4 } \right)h$$

anonymous · Answer

I guess not, I thought it was V=Bh

goldphenoix · Answer

The formula for finding the volume of a cylinder is: $$\large \large V= hr^2\pi$$

goldphenoix · Answer

Now plug it in. $$\large \large 175 = 7r^2\pi$$ What do we do first? Well, you would want to save pi for later, so that you can have an accurate answer later. So you want to get rid of 7. How can we get rid of 7?

anonymous · Answer

divide 7?

anonymous · Answer

from both sides of the equation?

goldphenoix · Answer

Good. 175 / 7 = ?

anonymous · Answer

25

goldphenoix · Answer

So now your equation looks like: $$\large \large 25 = r^2\pi$$ What do you think you do next?

anonymous · Answer

square root. So the end equation would look like 5=pi?

goldphenoix · Answer

No. 5 = r(pi)

Hmm. Then again, I feel like I did something wrong.

goldphenoix · Answer

Is it a multiple choice question?

anonymous · Answer

yes

goldphenoix · Answer

Can you give out the multiple choices.

anonymous · Answer

actually i cant anymore. its part of an online class and i only have a set number of attempts and it logged me out so that counted as an attempt.

goldphenoix · Answer

Oh, my bad. =/