Answer:

Step-by-step explanation:
Volume of Sphere = 
Where r = 4.7 cm
V = 
V = 
V = 
V = 434.9 cm³ (Up to 1 dp)
In order: 6, 6, 12
1st: l x w | 3 * 2
2nd: 1/2(l x w) | 1/2(12)
3rd: 1st + 2nd | 12
Addition elimination.
This method is used to eliminate one of the two variables in the equations. This makes it easier to solve for the remaining variable.
Answer:
14,836.5 in^3
Step-by-step explanation:
The volume of a cylinder is given by the equation (πr^2)h where r stands for radius and h stands for height
The radius of the cylinder is 15 in
The height of the cylinder is 21 in
Volume=15×15×21×π
=14836.5 in^3