REALLY need help with this problem please

Step-by-step explanation:

A hemisphere is defined as a three-dimensional shape that is half of a sphere with exactly one flat side and a circular surface on the other side.

The volume of a sphere is evaluated by the formula

                                                      ,

where is the radius of the sphere.

Following the definition of the hemisphere, the volume is then calculated as

                                                      .

Therefore,

                                               .

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3