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ashiteru123
25.01.2021 •
Mathematics
The sides of ΔABC are a, b, and c. If the lengths of a = 7 and b = 10, what are the possible lengths of c?
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Ответ:
The possible lengths of c are between 3 to 17.
Step-by-step explanation:
According to the scenario, calculation of the given data are as follows,
a = 7
b = 10
As we know that, in a triangle length of third side is always greater than difference between the given two side, and always lesser than sum of both side.
So, Difference between both side = 10 - 7 = 3
Sum of both side = 10 + 7 = 17
Hence, the possible lengths of c are between 3 to 17.
Ответ:
16
Step-by-step explanation:
We must find integers x, y with the most amount of prime divisors, not necessarily distinct, such that x + 3y < 1,000.
Obviously, this is achieved when the divisor is the least prime 2. So, we must find integers n, m such that
since
, then n must be 9. For n=9 we find the greatest integer m such that
and we find m=7
and
,
are the numbers we are looking for and the sum of their length is 9+7 = 16.
So, 16 is the maximum possible sum of the length of x and the length of y.