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 6 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, 18]
B. [0, 16]
C. [0, 19)
D. [0, 17]
Answer: D
Mathematics
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (0, 8) and (0, -8); asymptotes y = 2x and y = - 2x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Find the area of the shaded region in the figure. Round results to the nearest unit. Use ? ? 3.14.
A. 1809 ft2 B. 7034 ft2 C. 1608 ft2 D. 6431 ft2
Mathematics
Use a graphing calculator to solve the given equations to the nearest 0.01.x3 + 2x2 - 5x - 10 = 0
A. 2, 2.14, -2.14 B. -2, 2.24, -2.24 C. 2, 2.24, -2.24 D. -2, 2.34, -2.34
Mathematics
Write the fractions as decimal numbers.
A. 0.0024 B. 0.24 C. 0.024 D. 0.00024
Mathematics