Perform the operation and give the answer in Hindu-Arabic form.  +  

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A. 1213

B. 1231

C. 2131

D. 2113

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Answer: D

Mathematics

Factor the trigonometric expression.sin2x + 4 sin x - 45

A. (sin2 x + 9)(sin x - 5) B. (sin x - 45)(sin x + 1) C. (sin x - 9)(sin x + 5) D. (sin x + 9)(sin x - 5)

Evaluate the determinant.

A. -73 B. 63 C. -90 D. -63

Convert.600 minutes =    hours

A. 25 B. 10 C. 5 D. 240

Find the constant of variation for the stated condition: A varies jointly as b and h, and A = 189 when b = 36 and h = 7. 

A.
B.
C.
D.
E.