Simplify.

A. 1.8
B. 0
C. -1.8
D. ±1.8


Answer: A

Mathematics

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D.  - 1

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Use the power rules to simplify the expression. Use positive exponents to write the answer.(-2x-8y-2)-2

A. -2x16y4
B.
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D.

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Use the given information to find the exact value of the trigonometric function.sin ? = - , ? lies in quadrant IVFind cos .

A. - 
B.
C.
D. - 

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