The volume of the cylinder is defined (as usual) as the base area times the height. The base is a circle, so the base area is 
So, the volume is
A^2 -121 = a^2 -11^2 = (a-11)(a+11)
so the second choice is right sure
Answer:
42
Step-by-step explanation:
have a wonderful day
Ruth’s new floor cost $432.
The cost can be calculated as follows.
First, calculate the area of dining room. Use the formula of rectangle area (width x length)
Area = width x length
= 6 yd x 9 yd
= 54 sq yd
Second, calculate the total cost.
Cost = 54 sq yd x $ 8 per sq yd
= $ 432
Hence it cost $ 432 to install the new wood floor.
Read more on rectangle here
brainly.com/question/15019502?referrer=searchResults
Answer:
Answer:
It is D
Step-by-step explanation:
Distribute:
=(4)(5m)+(4)(3)+2m
=20m+12+2m
Combine Like Terms:
=20m+12+2m
=(20m+2m)+(12)
=22m+12
