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avanturin [10]
3 years ago
14

ABC has side lenths 20, 24, and 31. Do the side lenghts form a Pythagorean triple?

Mathematics
1 answer:
Brut [27]3 years ago
4 0
No they don't.
Phythagorean triple is when the sum of the squares of two numbers is equal to the square of another number.

20^2 + 24^2 = 400 + 576 = 976
31^2 = 961

20^2 + 24^2 should have been equal to 31^2 but that's not the case. So, the side's length don't form a triple.

Hope it helped!
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P(x)=2x^3-11x^2+ax-40 if x+4 is a factor of this polynomial what is the value of a
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Answer:

a = -86.

Step-by-step explanation:

By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:

P(-4) = 2(-4)^3 - 11(-4)^2 + a(-4)- 40 = 0

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