Solve the problem.At a ticket booth, customers arrive randomly at a rate of x per hour. The average line length is 
where 
To keep the time waiting in line reasonable, it is decided that the average line length should not exceed 6 customers. Solve the inequality 
to determine the rates x per hour at which customers can arrive before a second attendant is needed.
A. 0 ? x ? 19
B. 0 ? x ? 17
C. 0 ? x ? 16
D. 0 ? x ? 18
Answer: B
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Evaluate the integral.
A. 
sec-1 
x + C
B. 
sin-1 
x + C
C. 
sin-1 
x + C
D. 
sec-1 
x + C
Answer the question.Andrew creates a bar graph to show the increase in his company's sales. He wants to show the milestones - years in which sales reached 10 million, 20 million, 30 million, 40 million, and 50 million dollars respectively. The data are shown in the table below: 
In the graph, Andrew draws 5 equally spaced bars of heights 1 in, 2 in, 3 in, 4 in, and 5 in respectively. The height of each bar corresponds to the amount of sales. He labels each bar with the corresponding year (1975, 1985, 1993, 1999, 2003 respectively). Why is the graph misleading?
What will be an ideal response?
Complete.84.1 hg = ___ kg
A. 84.1 B. 0.841 C. 8410 D. 8.41
Find the standard equation of the indicated hyperbola.Center (2, -3), focus (9, -3), vertex (4, -3)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1