Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of hydrogen sulfide 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 and graph as a representation of this relationship.
Is the slope positive, negative, zero, or undefined?
A. Negative
B. Zero
C. Undefined
D. Positive
Answer: D
Mathematics
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Evaluate -(-x) for the given value of x.x = -72
A. 72
B. -72
C. 0
D. - 
Mathematics
Find the partial fraction decomposition for the rational expression.
A. 
+ 
B. 
- 
C. - 
+ 
D. 
+ 
Mathematics
Decide whether or not the ordered pair satisfies the system of linear equations.(6, 4);
A. Yes B. No
Mathematics
Factor, if possible.x3 - x2 - 72x
A. x(x + 9)(x - 8) B. x(x + 8)(x - 9) C. (x2 + 1)(x - 72) D. Prime polynomial
Mathematics