Identify the row operation that produces the resulting matrix.
? 
A. (-1)R2 ? R2
B. R1 + (-1)R2 ? R2
C. (-1)R1 + R2 ? R2
D. R1 + (-1)R2 ? R1
Answer: B
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Using the derivative of f(x) given below, determine the intervals on which f(x) is increasing or decreasing.f'(x) = x1/3(x - 7)
A. Decreasing on (0, 7); increasing on (7, ?) B. Decreasing on (0, 7); increasing on (-?, 0) ? (7, ?) C. Decreasing on (-?, 0) ? (7, ?); increasing on (0, 7) D. Increasing on (0, ?)
Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule two of the three tours in one day?
A. 180 B. 120 C. 36 D. 30
Solve the inequality. Express your answer using interval notation.|x| > -2
A. (-2, 2) B. {2} C. (-?, ?) D. no solution
Find the probability of the event.If two 6-sided dice are rolled, what is the probability that the sum is greater than 9?
A. 
B. 6
C. 
D. 