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]
Answer: B
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Find the indicated vector.Let u = 
, v = 
. Find v - u.
A. 
B. 
C. 
D. 
Solve the problem.Henry is a quality control inspector. He is watching the production line for Barb's Raisin Cookie. Henry will reject a cookie with less than 9 raisins. In the past, one out of every 100 cookies had less than 9 raisins. Find the probability that the first cookie Henry rejects is the 5th cookie on the line.
A. 0.086454 B. 0.048030 C. 0.009510 D. 0.009606
Solve the problem.For the vectors u and v with magnitudes 
= 6 and 
= 8, find the angle ? between u and v which makes 
= 4
A. 48.19° B. 60.00° C. 41.81° D. 41.41°
Solve the equation. Express irrational solutions in exact form and as a decimal rounded to three places.loga (16) = 4
A. {2}
B. 
? {0.038}
C. {1}
D. 