A man hikes up a mountain to the peak, where he rests for a few minutes and then continues down the other side of the mountain. We measure his location as distance down from the peak of the mountain. What can be said about the man's velocity when he is hiking up the mountain?
A. Velocity is positive.
B. Velocity is negative.
C. Velocity is 0.
D. None of the above.
Answer: B
Mathematics
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Solve the inequality 
.
?
A. 
B. 
C. 
D. 
Mathematics
A series of BUN measurements was done and the standard deviation was determined to be 1.24mg/dL with a mean average of 18.4 mg/dL. What is the coefficient of variation for this set of measurements?
A. 6.74mg/dL B. 0.0674 C. 6.74% D. 6.74%
Mathematics
Solve the compound inequality. Graph the solution set.0.5 < 0.2x - 0.5 < 1.4
A. (5, 9.5)
B. [5, 9.5]
C. (0, 4.5)
D. (5, 9.5)
Mathematics
Write the system of linear equations represented by the augmented matrix. Use x, y, z, and, if necessary, w for the variables.
A. 
B. 
C. 
D. 
Mathematics