Answer:

Step-by-step explanation:
The formula for the circumference of a circle with the diameter is:

Since the diameter is 3m, solve for  :
:

 
        
                    
             
        
        
        

this formula is used to determine gpm (gallons per minute) of flow with a known hose diameter (d) and nozzle pressure (np). The constant (29.7) is consistent when figuring flow with in gallons with a know pressure expressed in psi (pounds per square inch). 
Scenario example: a firefighter is using a handline to fight fire with an 1 3/4 inch line with a nozzle pressure of 100 psi. How much water is the firefighter flowing when fighting fire? 
 
 
        
             
        
        
        
Answer:
   448.69 in^3
Step-by-step explanation:
The volume of a sphere is given by the formula ...
   V = (4/3)πr^3
We want to use diameter, so we can substitute r = d/2 into the formula:
   V = (4/3)π(d/2)^3 = (4/(3·8))πd^3
   V = (π/6)d^3
For the given numbers, ...
   V = (3.14/6)(9.5^3) ≈ 448.69 in^3 . . . . volume of a basketball
 
        
             
        
        
        
Answer:
t cannot be -5 or 0 because these cause a 0 in the denominator and you cant divide by 0 that I'm aware of 
 
        
             
        
        
        
Answer:
-8 feet
Step-by-step explanation:
63 - 71 = -8