Simplify. Assume that no radicands were formed by raising negative quantities to even powers.3
+ 9
A. 12
B. 84
C. 27
D. 12
Answer: A
Mathematics
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Graph the equation.-5x - y = 0
A. 
B. 
C. 
D. 
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Solve the problem.The graph of a quadratic function has y-intercept (0, -144) and x-intercepts (-9, 0) and (8, 0). Find an equation of the function.
A. y = 2x2 - 2x + 144 B. y = 2x2 + 2x + 144 C. y = 2x2 + 2x - 144 D. y = 2x2 - 2x - 144
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Solve the problem.If cos ? = - 
, and ? terminates in quadrant II, then find cos 2?.
A. 
B. - 
C. - 
D. 
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