Question

Please help me please help me the problems are up above

Answer 1

The volume of a sphere with radius
`r` is
`(4)/(3)\pi r^3`. If the radius is multiplied by a constant
`k`, then the new volume is
`(4)/(3) \pi (kr)^3`, which is equal to
`k^3 \cdot (4)/(3) \pi r^3`. This means that the volume of the sphere is multiplied by
`k^3`.

a. If the radius is doubled, the volume is multiplied by 8

b. If the radius is tripled, the volume is multiplied by 27

c. if the radius is quadrupled, the volume is multiplied by 64