Simplify the expression. Assume that all variables are positive when they appear.

A. 7
B.
C. 43
D.


Answer: B

Mathematics

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Find the derivative.y =  + 

A. y ' = 2 cos x - csc2 x B. y ' = 2 csc x cot x - sec2 x C. y ' = 2 csc x cot x - csc2 x D. y ' = - 2 csc x cot x + sec2 x

Mathematics

Use roster notation to name the set.The set of natural numbers that are multiples of 5

A. {5, 10, 15, . . . } B. {5, 10, 20, . . . } C. {5, 25, 125, . . . } D. {1, 2, 3, . . . }

Mathematics

Simplify.-9(8 - 5) - 34

A. 3 B. -108 C. 54 D. 81

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Find the measure of the indicated angle.Find the measure of ?EBC.

A. ?EBC = 35° B. ?EBC = 68° C. ?EBC = 55° D. ?EBC = 11°

Mathematics