D, because all of the others when multiplied are greater or less than 34. If you multiply the sides of D you get 34 exactly.
When combining 2 functions, the restrictions applied to one applies to the whole
u(x) has all except 0
v(x) is all except 2
so
(uv)(x) is all except 0 and 2
restrictions is x≠0 and x≠2
ANSWER
The height of the cylinder is,

EXPLANATION
The volume of a cylinder can be found using the formula,

To make h the subject, we divide through by

This will give us,

We now substitute


and

into the given expression for h to obtain,

We simplify to get,


Therefore the height of the cylinder is 5 inches.