Answer:
<em>it's either A or B hope I helped a little</em>
9x^2 and 5x are not like terms because 9x is being squared and 5x isn't.
Value of x=34degree will make parallelogram ABCD a rhombus
In Cartesian coordinates, the region (call it
) is the set

In the plane
, we have

which is a circle with radius
. Then we can better describe the solid by

so that the volume is

While doable, it's easier to compute the volume in cylindrical coordinates.

Then we can describe
in cylindrical coordinates by

so that the volume is

Answer:
I think the answer would be C
Step-by-step explanation: