Graph the function.y = - 
sin 
A. 
B. 
C. 
D. 
Answer: A
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Rewrite the quadratic function in standard form by completing the square.f(x) = x2 + 6x - 4
A. f(x) = (x + 3)2 - 13 B. f(x) = (x + 3)2 + 13 C. f(x) = (x + 6)2 + 40 D. f(x) = (x + 6)2 - 40
Solve the system by the substitution method.
A. (1, 0), (-1, 0) B. (1, 0) C. (-1, 0) D. ?
Solve.One conveyor belt can move 1000 boxes in 10 minutes. Another can move 1000 boxes in 6 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?
A. 15 minutes
B. 
minute
C. 
minute
D. 1
minutes
Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 - x + c
A. 
; 
2
B. 1; (x - 2)2
C. 
; (x - 1)2
D. 
; 
2