Answer:
3 cylinder will fill 9 cones with water 
Step-by-step explanation:
This problem bothers on mensuration of slides, cone and cylinder 
We know that the 
Volume of a cylinder = πr²h
Volume of a cone = 1/3(πr²h)
Given that both cylinder and cone has same height and radius 
From the given expression we can deduce that the cone is 3 times smaller than the cylinder in volume 
So if 1 cylinder will fill 3 cones 
Then 3 cylinders will fill x cones 
By cross multiplication we have 
x= 3*3cones
x= 9 cones 
Hence 3 cylinder will fill 9 cones with water 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Suppose the dimensions of the playground are x and y. 
The total amount of the fence used is given and it is 780 ft. In terms of x and y this would be 3x+2y=780 (we add 3x because we want it to be cut in the middle). Therefore,  y= 780/2-3/2x. Now, the total area (A )to be fenced is 
A=x*y= x*(390-3/2x)=-3/2 x^2+390x
Calculating the derivative of A and setting it equals to 0 to find the maximum 
A'= -3x+390=0
This yields x=130. 
Therefore y=780/2-3/2*130=195
Thus, the maximum area is 130*195=25,350ft^2
 
        
             
        
        
        
For Number 48. Your Number Will Be Letter B 
For Number 49. Your Number Will Be Letter B As Well 
        
             
        
        
        
Answer:
4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
Use a calculator