Question

Please help due today i beg of u i really need help like plzzzz.......

Answer 1

8. The volume of the rocket is
`105\pi`
`inch^(3)`.

9. Matt made the error by putting the value of the diameter.

Explanation:

8. The volume of the rocket = the volume of the cone + the volume of the cylinder.

The volume of the cone is =
`(1)/(3) \pi * radius^(2) (height) = (1)/(3) \pi * 3^(2) *5 = 15\pi`
`inch^(3)`.

The volume of the cylinder is
`\pi * radius^(2) * height = \pi * 3^(2) * 10 = 90\pi`
`inch^(3)`.

The total volume is
`15\pi + 90\pi = 105\pi inch^(3)`.

9. Matt made the error in calculating the volume.

The diameter of the spherical ball is given by 15 centimeter.

The volume of a spherical ball is calculated by the formula
`(4)/(3) \pi * radius^(3)`.

Matt put the diameter of the spherical ball instead of its radius.