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taesthetic11
22.07.2019 •
Mathematics
In the right triangle shown, what is the cosine of angle c?
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Ответ:
we first need to find the actual lengths of the sides.. to do this we will use the Pythagorean theorem:
(x + 15)² + (x + 1)² = (x + 17)² and now after simplifying both sides and moving everything to one side we get the following quadratic equation:
x² - 2x - 63 = 0 and solving by factoring we get solutions of x = 9 and x = -7, but x = -7 does not make sense in this problem.
Using x = 9 we see the sides of the triangle are 10, 24, and 26
the cos(c) =
Ответ:
the answer is 12/13
Step-by-step explanation:
Ответ:
B.
Step-by-step explanation:
They were just trying to weaken her not kill her