Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 4 hours to do the job. How long would it take the experienced auditor working alone?
A. 4 hr
B. 8 hr
C. 6 hr
D. 12 hr
Answer: C
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Graph the function.f(t) = 
sin 
A. 
B. 
C. 
D. 
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x2(x - 2)(x - 5)
A. x = 0, touches the x-axis and turns around; x = -2, crosses the x-axis; x = -5, crosses the x-axis B. x = 0, crosses the x-axis; x = 2, crosses the x-axis; x = 5, crosses the x-axis C. x = 0, crosses the x-axis; x = 2, touches the x-axis and turns around; x = 5, touches the x-axis and turns around D. x = 0, touches the x-axis and turns around; x = 2, crosses the x-axis; x = 5, crosses the x-axis
Write the rational expression in lowest terms.
A. m B. -m C. m + 5 D. Already in lowest terms
Express the solution set of the inequality in interval notation.x > 21
A. [21, ?) B. (21, ?) C. (-?, 21] D. (-?, 21)