Given curves:
The region is rotated about the line 
Shell method formula : 
Since the region is rotated about the line y= 8, we solve the given curve for x.
Take cube root on both sides.
The radius of the given region is 
and the height is ![x=4\sqrt[3]{y}](https://tex.z-dn.net/?f=x%3D4%5Csqrt%5B3%5D%7By%7D)
.
The integral to find the volume is : ![\int_{8}^{16}2\pi (y-8)(4\sqrt[3]{y})dy](https://tex.z-dn.net/?f=%5Cint_%7B8%7D%5E%7B16%7D2%5Cpi%20%28y-8%29%284%5Csqrt%5B3%5D%7By%7D%29dy)
Rectangles are geometric shapes with two lines of symmetry. One line of symmetry divides a rectangle in half horizontally, and the other line divides the shape in half vertically. Rectangles also have four right angles and two pairs of lines, with the lines in each pair having equal lengths.
Answer:
Beatz on demand
Step-by-step explanation:
Even though it starts at 25 for the fee it has a lower monthly rate cost then itunes. While iTunes charges 8.99 per month Beatz on demand only charges 5.99 a month
U should know the area of rectangle is w*l
if we increase it by double or times 2 its area will be
A=2w*2wl
A=4wl
area would be 4 times of original one
Now u can get the answer
2 would be "B" and 3 would "D"
