Find the exact value by using a sum or difference identity.cos (135° + 120°)

A. - 
B.  
C. - 
D.  

Answer: C

Mathematics

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Use the graph to find a ? > 0 such that for all x, 0 <  < ? ?  < ?.

A. 0.24 B. 2 C. 0.27 D. 0.51

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Find a polar equation for the circle shown.r = 10 sin ?

A.

B.

C.

D.

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Solve the problem.Find three consecutive odd integers such that the sum of all three is 36 less than the product of the smaller two.

A. 7, 9, 11 B. -6, -4, -2 C. 5, 7, 9 D. 7, 9, 11, or -6, -4, -2

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Solve the system of equations.0.1x + 0.3y + 0.4z = -0.10.1x - 0.4y + 0.2z = -1.60.4x - 0.4y - 0.4z = 0.8

A. (0.2, 2, -2) B. (0.3, 3, -2) C. (2, 3, -3) D. (0.3, 2, -3)

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