Answer:
Step-by-step explanation:
If you had a solid cylinder, in order to find the amount of material that makes up that solid cylinder, you would find the volume using the radius of 4 (half of the diameter 8).  BUT we want to know the volume of the solid with the radius of 4 minus the solid that has a radius of 2.5 (half of the diameter 5).
 That's volume outer - volume inner.  To find the outer volume:
  That's volume outer - volume inner.  To find the outer volume:
 so
 so
 and
 and
 and do the same for the inner volume:
  and do the same for the inner volume:
 and
 and

Subtract the inner from the outer:

If you need your answer in decimal form, then the volume is
9189.16 cm³
 
        
             
        
        
        
Answer:
a. True 
b. True
c. False
d. False
Step-by-step explanation:
<u>First Table</u>
Length=10 feet, Width=4 feet
Area =10 X 4=40 Square Feet
<u>Second Table</u>
The second table is half as long  as the first table.
Length =0.5 X 10 =5 feet
Area=5 X Width= 5w
The area of the second table is one  fourth the area of the first table.
Area of Second Table = X Area of first table
 X Area of first table
5w= X 40
 X 40
5w=10
Width of the Second table, w=2 feet
The following are true.
(a)The width of the second  table is 2 feet.
(b) The area of the second  table is 10 square feet.
 
        
             
        
        
        
Answer:
Brown Flavor
Step-by-step explanation:
Mr. SlPPY HURT ME
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
To find the rate of increase all you have to do is take one of the data sets to see that every two months its charge time increases by 15 minutes or 7.5 minutes every month.