Evaluate the integral.
dx
A. - 
-3/4 + C
B. 10
5/4 + C
C. 8
5/4 + C
D. 
5/4 + C
Answer: D
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Add or subtract horizontally.(5x5 - 5x4 + 8x2 - 9x + 10) - (15x5 + x3 - 4x2 - 3x + 1)
A. 10x5 - 5x4 - x3 - 5x + 10 B. -10x5 - 5x4 - x3 + 12x2 - 6x + 9 C. -10x5 - 5x4 + x3 + 11x2 + 6x - 9 D. -10x5 - 5x4 + x3 + 4x2 - 12x + 11
Perform the indicated operations and simplify.
+ 
+ 
A. 
B. 
C. 
D. 
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 minutes 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 seconds elapsed.
Solve the system. If the system's equations are dependent or if there is no solution, state this.3x + 2y + z = 42x - 3y - z = 55x + 12y + 5z = 2
A. (4, 5, 2) B. No solution C. The equations are dependent. D. (-4, 5, -2)