Formula for volue of cylinder is area time height. Lets find area
A=

diameter=2r
8=2r
r=4
Now substitute r to

A=

Now we have formula
V=

- its the result, so B
Answer:
x=9
Step-by-step explanation:
81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.
Reflect across the y axis and moved through the translation x = 2
f(x) = 2x - 7 This should be the answer!!
4x-1=18
4x=18+1
4x=19
x=19/4