I'm having some trouble understanding how this problem is solved

volume = 4275π m³

Step-by-step explanation:

The composite figure shown in the diagram is made up of a hemisphere at the top and a cone at the bottom.

Therefore,

Volume = volume of hemisphere + volume of cone.

The formula for determining the volume of a hemisphere is expressed as

Volume = 2/3πr³

Diameter of hemisphere = 30m

Radius = diameter/2 = 30/2 = 15m

Volume of hemisphere = 2/3 × π × 15³ = 2250πm³

The formula for determining the volume of a cone is expressed as

Volume = 1/3πr²h

h = height of cone = 33m

r = 15 m

Volume = 1/3 × π × 15² × 33

Volume = 2475π m³

Volume of the composite figure is

2250π + 2475π = 4275π m³

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )