Find the root. Assume that all variables represent positive numbers.
A. 
B. x9
C. x15
D. x6
Answer: D
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Find the equation in standard form of the parabola described.The vertex has coordinates (9, -4), and the focus has coordinates (9, -6).
A. (y - 4)2 = 12(x + 9) B. (x - 9)2 = -8(y + 4) C. (x - 9)2 = 8(y + 4) D. (y - 4)2 = -12(x + 9)
Use an integer to express the number.One country exported $85,600,000 more than it imported, giving it a positive trade balance.
A. -85,600,000 B. 85,600,000
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-5, -3) and (2, 5); Decreasing on (-3, 0); Constant on (0, 2) B. Increasing on (-3, -1); Decreasing on (-5, -2) and (2, 4); Constant on (-1, 2) C. Increasing on (-3, 1); Decreasing on (-5, -3) and (0, 5); Constant on (1, 2) D. Increasing on (-3, 0); Decreasing on (-5, -3) and (2, 5); Constant on (0, 2)
Determine which of the graphs below represents the following function y=|x|sin x ?
A. 
B. 
C. 
D. 
E. 