Answer:
250π
1000π
Step-by-step explanation:
(refer to attached)
volume of cylinder is given by:
V = π r²h,
where r = radius of base and h = height of cylinder
Given r = 5 and h = 10, hence
V = π r²h
V = π (5)²(10)
V = π (25) (10)
V = 250π (answer)
For the second case, r = 10 cm
V = π r²h
V = π (10)²(10)
V = π (100) (10)
V = 1000π (answer)
The best way to remember which place is rounded to the nearest 10th, 100th, 1000th, etc., is by counting the number of 0's.
This question wants you to round to the nearest 10th.
How many 0's does 10 have? 1.
So we round one space after the decimal.
This gets us 73.2
The lowest common multiple of 2 and 7 is 14, so 14 days will pass before he does both chores again.