Answer:
37.68.
Step-by-step explanation:
formula is C = 2 times pi times r
radius is half of diameter so radius is 6.
6 times 2 times 3.14 is 37.68.
Deal with the numbers first
GCF of 16, 40 and 68 is 4
there is no GCF of the variables
so required GCF is 4
now, that will give you "A", or the compounded amount
what's the interest earned? well, subtract the original amount, the Principal, from A, A - P, and you'd be left with the earned interest
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Answer: The three numbers are 8, 12 and 20.
Explanation:
Let k be the ratio of the numbers
The numbers: 2k, 3k, 5k
(2k)^2 + (3k)^2 (5k)^2 = 608
4k^2 + 9k^2 + 25k^2 = 608
38k^2 = 608
k^2 = 16
k = 4
Hence, the three numbers are 8, 12 and 20.