Question 11: https://snipboard.io/Kqs1Mv.jpg

Question

kekeman · Answer

Math...

darkknight · Answer

We need tofind thevolume of the full            cylinder, then subtract by thevolume of the                 empty space inside ofthe cylinder.
$$V=\pi *r^2*h$$
For the full cylinder, r =6/2 (half the diameter) and      the height is given
For the empty space use the same height.  We know the pipe is      .75 inches thick, so the   radius of the  big cylinder, 3in, minus   .75  in  = 2.25 in which is the radius of the empty space,  use the    volume equation to  find the volume of the empty space,
Remember to  subtract this empty space from the volume of the big cylinder.

darkknight · Answer

mind my jammed keyboard,

kekeman · Answer

Lol omg

darkknight · Answer

The big cylinder btw is the actual  cylinder, the empty space is the   part you have to take out

So 
big cylinder   = em pty cylinder +  volume of the pipe
OR
volume of the pipe = big cylinder - empty cylinder

kekeman · Answer

So the answer is  254 cubic inches

AZ · Answer

$\color{#0cbb34}{\text{Originally Posted by}}$ @kekeman
So the answer is  254 cubic inches
$\color{#0cbb34}{\text{End of Quote}}$

That is correct