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 ? 18
B. 0 ? x ? 19
C. 0 ? x ? 16
D. 0 ? x ? 17
Answer: D
Mathematics
You might also like to view...
Using Green's Theorem, find the outward flux of F across the closed curve C.F =(x2 + y2)i + (x - y)j ; C is the rectangle with vertices at (0, 0), (6, 0), (6, 3), and 
A. 90 B. -36 C. 126 D. 72
Mathematics
Solve the inequality. Graph your solution on a number line, and write your solution in interval notation.-(-6x - 8) - 8 + 4x < 8x
A. (-?, 8) 
B. (8, ?) 
C. (0, ?)
D. (-?, 0) 
Mathematics
Find an equation for the graph.
A. y = 3 cos 2x
B. y = 3 cos 
x
C. y = 2 cos 3x
D. y = 2 cos 
x
Mathematics
Solve the linear inequality.-5(x + 6) - 22x < 5(-5x + 7) - 3x
A. x > 65 B. x < 65 C. x > -65 D. x < -65
Mathematics