Determine the amplitude of the given function.y = sin 
A. 2?
B. 3
C. 1
D. 
Answer: C
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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. - 
Solve the problem.A rectangular piece of cardboard measuring 14 inches by 25 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 2.88 in. B. 20.23 in. C. 12.2 in. D. 10.12 in.
Find an equation in slope-intercept form of the line satisfying the specified conditions.Through (8, -10), parallel to -2x - 5y = 24
A. y = - 
x - 
B. y = - 
x + 5
C. y = - 
x - 
D. y = 
x + 
Factor by grouping.15x2 + 20xy + 18x + 24y
A. (3x + 4y)(5x + 6) B. (3x + 4)(5x + 6) C. (15x + 4y)(x + 6) D. (3x - 4y)(5x + 6)