Find the phase shift of the function.y = 5 cos (6x + ?)
A. 
units to the left
B. 6? units to the right
C. 5? units to the right
D. 
units to the left
Answer: D
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Find f(g(x)) and g(f(x)) and determine whether the pair of functions f and g are inverses of each other.f(x) = 
and g(x) = 4x - 2
A. inverses B. not inverses
Factor the polynomial completely. If the polynomial cannot be factored, write "prime."-xy5- x5y
A. -xy(x - y)(x4 + xy + y4) B. -xy(x4 + y4) C. -xy(x - y)(x - y) D. -xy(x + y)(x4 - xy + y4)
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin 
.
A. 
B. - 
C. - 
D. 
Peter and Mary earn a total of $502 by working a total of 37 hours. If Peter earns $16/h and Mary earns $10/h, how many hours did each work?
A. Peter worked 19 hours and Mary worked 19 hours. B. Mary worked 15 hours and Peter worked 22 hours. C. Peter worked 24 hours and Mary worked 13 hours. D. Peter worked 22 hours and Mary worked 15 hours. E. Peter worked 19 hours and Mary worked 18 hours.