Subtract.-25 - (-25)
A. 0
B. 25
C. -25
D. -50
Answer: A
Mathematics
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Write the opposite of the polynomial.-6x - 10
A. 6x + 10 B. 10 - 6x C. -6x + 10 D. -10 - 6x
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Solve the inequality.For the function f(x) = x2 - 13x + 42, solve f(x) > 0.
A. (6, 7) B. (-?, 6) ? (7, ?) C. (-?, 6) D. (7, ?)
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Refer to the figure. 
If m?1
Mathematics
Solve the problem.Suppose an object moves along the y-axis so that its location is y = f(x) = x2 + x at time x (y is in meters and x is in seconds). Find the average velocity (the average rate of change of y with respect to x) for x changing from 2 to 9 seconds.
A. 3 m/s B. 12 m/s C. 15 m/s D. 84 m/s
Mathematics