Perform the indicated operation.0.57 - (-0.26)
A. 0.93
B. 0.31
C. 0.83
D. 0.1482
Answer: C
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Simplify. Assume that all variables represent nonnegative numbers.
A. x12y10z3
B. 
C. x6y5z3
D. x6y5z3
Compute the gradient of the function at the given point.
A. -768i - 40j B. -384i - 40j C. -96i - 4j D. -96i - 40j
Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of chlorine dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. What does the ordered pair (9, 28.4) mean in the context of this situation?
A. (9, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 15 minutes elapsed. B. (9, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 9 seconds elapsed. C. (9, 28.4) indicates that 9 ppm of chlorine was dissolved after 28.4 minutes elapsed. D. (9, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 9 minutes elapsed.
The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 