4(2x-7)=8x-28
4(-4x+18)=-16x+72
(8x-28)-(-16x+73)
24x+45
Its bh 5 time 7 = 35 is ur hight
Consider a circle with radius centered at some point on the -axis. This circle has equation
Revolve the region bounded by this circle across the -axis to get a torus. Using the shell method, the volume of the resulting torus is
where .
So the volume is
Substitute
and the integral becomes
Notice that is an odd function, so the integral over is 0. This leaves us with
Write
so the volume is
The answer that you are looking for is C.
Answer:
12 hope this help out dude