The volume of air inside a rubber ball with radius r can be found using the function v(r)=4/3 πr3 . what does v[5/7] represent? a. the radius of the rubber ball when the volome equals 5/7 cubic feet b. the volome of the rubber ball when the radius equals 5/7 feet c. that the volume of the rubber ball is 5 cubic feet when the radius is 7 feet d. that the volume of the rubber ball is 7 cubic feet when the radius is 5 feet

we know that

The volume of a sphere (rubber ball) is equal to

where

r is the radius of the sphere (rubber ball)

The volume in function notation is equal to

in this problem we have

that means

The radius of the rubber ball is

and

The volume of the rubber ball is

therefore

the answer is the option B

the volume of the rubber ball when the radius equals feet

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

step-by-step explanation:

what is the figure? attach a picture.