Simplify.9 + (-30) ÷ (-6) (-5)

A. -19
B. 19
C. 16
D. -16


Answer: D

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A.
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D. None of these

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Find the exact value of the expression.cos2

A.
B.
C.
D.

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Perform the indicated operation. Simplify, if possible. - 

A.  
B.  
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