Find the absolute value.
A. 
B. 0
C. 
D. 
Answer: C
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Graph the function on the indicated interval.y = 
cos (?x), 0 ? x ? 4 
A. 
B. 
C. 
D. 
Solve the problem.Let f(x) compute the time in hours to travel x miles at 23 miles per hour. What is the interpretation of 
A. The hours taken to travel 23 miles B. The hours taken to travel 4 miles C. The miles traveled in 23 hours D. The miles traveled in 4 hours
Solve the problem.At a single ticket booth, customers arrive randomly at a rate of x per hour. The average line length is given by 
where 
To keep the wait in line reasonable, it is required that the average line length should not exceed 5 customers. Determine the range of rates at which customers can arrive before a second attendant is needed. Express your answer in interval form.
A. [0, 19) B. [0, 17] C. [0, 16] D. [0, 18]
Maximize P subject to the constraints.
A. 
at 
B. 
at 
C. 
at 
D. 
at 
E. 
at 