Simplify.

A.  
B.  
C.
D.  


Answer: D

Mathematics

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Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?

A.

B.

C.

D.

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Bank A pays 5% per year compounded monthly on investments. Bank B pays 5% per year compounded weekly on investments. In which bank should I invest my money?

What will be an ideal response?

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Solve by the elimination method.  x - 7y = 19-7x - 8y = 38

A. {(-2, -3)} B. No solution C. {(-3, -2)} D. {(2, -2)}

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Write words for the following.3 - (-15)

A. 15 minus 3 B. the opposite of 3 minus 15 C. 3 minus negative 15 D. 3 minus 15

Mathematics