Answer:
The volume of the sphere is 14m³
Step-by-step explanation:
Given
Volume of the cylinder = 
Required
Volume of the sphere
Given that the volume of the cylinder is 21, the first step is to solve for the radius of the cylinder;
<em>Using the volume formula of a cylinder</em>
The formula goes thus

Substitute 21 for V; this gives

Divide both sides by h


The next step is to solve for the volume of the sphere using the following formula;

Divide both sides by r

Expand Expression

Substitute 



Multiply both sided by r

 ------ equation 1
 ------ equation 1
From the question, we were given that the height of the cylinder and the sphere have equal value;
This implies that the height of the cylinder equals the diameter of the sphere. In other words
 , where D represents diameter of the sphere
 , where D represents diameter of the sphere
Recall that 
So, 
 
Substitute 2r for h in equation 1



Hence, the volume of the sphere is 14m³
 
        
                    
             
        
        
        
Answer:
The answer is 337.5.
Step-by-step explanation:
Srry Im late. :(
 
        
                    
             
        
        
        
Answer: 
He runs 2.5 meters per second
Step-by-step explanation: 
all you do is divide 75/30 and the answer is 2.5.
 
        
             
        
        
        
14 2/3 This is the answer! I know you will get this right buddy!