The correct answer for 1×10 in decimals is 0.1
I honestly don’t know man but don’t worry, if you get a bad score it won’t matter in 30 years :)
The volume of the original cylinder is
... V = π·r²·h
For r=1 and h=1, this is
... V = π·1²·1 = π
For the new cylinder, the volume is 1.089 times that amount.
... V = 1.089π = π·1.1²·(1-k)
... 1.089/1.21 = 1-k
... k = 1 - 1.089/1.21 = 1 - 0.9 = 0.1 = 10%
The appropriate choice is (B) 10.
Answer:
A. 120 in.
Step-by-step explanation:
Just multiply the two numbers.
