Corrected Question
The volume of air inside a rubber ball with radius r can be found using the function V(r) = four-thirds pi r cubed. What does V(5/7) represent?
Answer:
(B)the volume of the rubber ball when the radius equals five-sevenths feet
Step-by-step explanation:
The Volume of a sphere of radius r can be found using the formula:

Therefore comparing the expression:  with V(r):
  with V(r):

Thus,  is the volume of a ball of radius
  is the volume of a ball of radius  feet.
 feet.
The correct option is B.
 
        
                    
             
        
        
        
Answer:
x = 39
Step-by-step explanation:
there is a theorem that states that the midsegment in a trapezoid is equal to the sum of the bases divided by two
so, (36 + 42)/2 = x
36 + 42 = 78
78/2 = 39
 
        
             
        
        
        
Answer:
x=2
Step-by-step explanation:
-2x+4=6x-12  Add 2x to both sides.
<u>+2x    +2x</u>
4=8x-12         Add 12 to both sides.
<u>+12  +12</u>
16=8x            Divide by 8 on both sides.
<u>/8 /8</u>
2=x
Hope this helps you out and have a great day (~^▽^)~
 
        
                    
             
        
        
        
Answer:
28.26 
Step-by-step explanation:
The radius is half of the diameter. 6/2 = 3, so the radius of this circle is 3 cm.
The formula for the area of a circle is: π
Plugging 3 into the radius, we have:
 × π =
 × π =
9 × π
We can round π to 3.14
9 × 3.14 = 28.26
 
        
             
        
        
        
What does "gcf" stand for?