10 points up if able. very appreciated

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.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

congruent segments

step-by-step explanation: