For the second problem the answer D, -9, -11
In cylindrical coordinates, we have
, so that

correspond to the upper and lower halves of a sphere with radius
. In spherical coordinates, this sphere is
.
means our region is between two cylinders with radius 1 and
. In spherical coordinates, the inner cylinder has equation

This cylinder meets the sphere when

which occurs at

where
. Then
.
The volume element transforms to

Putting everything together, we have

Answer:
0.25.
Step-by-step explanation:
.
The options are wrong lol, it is -1/8
Answer: 75% Of the original price
Step-by-step explanation: