Multiply.-12 ? (-12)

A. -156
B. -144
C. 156
D. 144


Answer: D

Mathematics

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Find the exact value using a double-angle identity.cos(120°)

A. - 
B. - 
C. - 
D.

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Multiply and simplify. ? 108x

A.
B.
C. 6,804x
D.

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Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by . During what interval of time will the rocket be higher than 235.2 m?

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Mathematics