Write the function in the form 
or 
. Find the period and phase shift.y = 3 sin
A. y = 3 sin
period = 
; phase shift = - 
B. y = 3 sin
period = 5; phase shift = 
C. y = 3 sin
period = 5; phase shift = 
D. y = 3 sin
period = 
; phase shift = - 
Answer: D
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Multiply.(-0.7x2)(-0.5x7)
A. 0.35x14 B. 0.35x9 C. -0.35x9 D. -0.35x14
Write the percent as a decimal.85%
A. 8.5 B. 0.74 C. 0.085 D. 0.85
Solve the problem.The matrix shows the average number of wax and buff treatments each of 3 workers in a car wash can do in a day. Give the matrix that shows what each worker can do in 3 days. Wax Buffs
A. 
B. 
C. 
D. 
The graphs of two polynomials p and d are shown in the figure. p is represented by the solid line and d is represented by the dashed line. If f = 
, (a) find the domain of f, (b) find the x-intercepts of f, and (c) sketch the graph of f.
A. (a) (-?, -2) ? (-2, ?)
(b) (-1, 0)
(c) 
B. (a) (-?, 1) ? (1, ?)
(b) (2, 0)
(c) 
C. (a) (-?, -1) ? (-1, ?)
(b) (-2, 0)
(c) 
D. (a) (-?, -1) ? (-1, ?)
(b) (-2, 0)
(c) 