Use the given information to find the exact value of the expression.sin ? = - , ? lies in quadrant IV, and cos ? = - , ? lies in quadrant IIIFind sin (? - ?).

A.
B.
C.
D.


Answer: D

Mathematics

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Find the indicated sum. Find the sum of the first 8 terms in the geometric series 3 - 6 + 12 - . . .

A. -257 B. -765 C. 765 D. -255

Mathematics

Refer to the given figure, an isosceles triangle with AB = AC.If the perimeter of ?ABC = 52 m, and BC =  , what is the length AC?

A. 38 m
B.  
C. 50 m
D. 14 m

Mathematics

Determine whether the given function is even, odd, or neither even nor odd.

A. Neither B. Even C. Odd

Mathematics

Simplify the algebraic expression.

A. -8m
B.
C. -80m
D. -80

Mathematics