Simplify the expression.

A. -3
B. -13
C. 17
D. 13


Answer: D

Mathematics

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Solve.Find the measure of the angle, to the nearest degree, from l1 to l2:l1: l2: 

A. 135° B. 45° C. 173° D. 30°

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Simplify, if possible. If the answer is undefined, state so.

A. 54 B. Undefined C. -375 D. -3

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Find the trigonometric function value of angle ?. Use a calculator if necessary.cos ? = , with ? in quadrant IVFind sin ?.

A. - 
B. - 
C. - 
D. - 

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Factor the polynomial completely.z6 + 1

A. (z3 + 1)(z3 - 1) B. (z + 1)(z - 1)(z4 - z2 + 1) C. (z2 + 1)(z4 - z2 + 1) D. (z + 1)(z - 1)(z2 + z + 1)(z2 - z + 1)

Mathematics