Use the accompanying graph of a particle moving on a coordinate line with velocity v = f(t) in ft/sec at time t seconds. The axes are marked off at one-unit intervals. Use these terms to describe the motion state: moving forward/backward, increasing/decreasing speed, and resting. Recall that speed = 
. 
Give the interval(s) when the particle is moving forward.
A. (0, 8) and (21, 25)
B. (11, 19)
C. (0, 11) and (19, 25)
D. (8, 11) and (19, 21)
Answer: A
Mathematics
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Solve.5x - y - 8z = 15-7x + 8y + 3z = 229x - 2y + z = 56
A. (-8, 9, 16) B. No solution C. (8, 9, 2) D. (8, 2, 9)
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Use Newton's method to find an approximate answer to the question. Round to six decimal places.Where is the first local maximum of f(x) = 2x sin x on the interval (0, ?) located?
A. x ? 2.000000 B. x ? 2.028647 C. x ? 2.039758 D. x ? 2.028758
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Construct a scatter plot of the data in the table. 
A. 
B. 
C. 
D. 
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