Find the exact value of the indicated trigonometric function of ?.tan ? = - , 90°< ? < 180°Find cos ?.

A.
B. -8
C. - 
D.


Answer: C

Mathematics

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Perform the addition visually using symbols.9 + (-10)

A. -19 B. 1 C. 19 D. -1

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Graph.-4 < y ? -1

A.

B.

C.

D.

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Solve the problem.Jay drove 316 kilometers at the average rate of 79 kilometers per hour. How long did the trip take?

A. 3 hr 
B. 5 hr 
C. 4 hr 
D.  hr

Mathematics

Find the domain of the function.f(x) = 

A. all real numbers, or (-?, ?) B. {x|x < 7}, or (-?, 7) C. {x|x ? 0}, or (-?, 0) ? (0, ?) D. {x|x ? -7}, or (-?, -7) ? (-7, ?)

Mathematics