3 years ago

Help needed!! 10 points up if able. Very appreciated

1 answer:

4 0

first we need to find the hypotenuse by using a^2 + b^2 = c^2 (where c is the hypotenuse and a and b are the other sides)

8^2 + 5^2 = 64 + 25 = 89, so c = sqrt89.

cosine is adjacent over hypotenuse: 8/sqrt89

rationalize the fraction: (8*sqrt89)/89

the answer is C.

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