Question

average time a customer spends in the system​

Answer 1

Explanation:

Trigonometry Table – Introduction to Trigonometry

sinx=cos(90∘−x)

cosx=sin(90∘−x)

tanx=cot(90∘−x)

cotx=tan(90∘−x)

secx=cosec(90∘−x)

cosecx=sec(90∘−x)

1sinx=cosecx.

1cosx=secx.

Answer 2

Answer:

W = the average time a customer spends in the system. 1/h = the average service time per customer. The ratio of customer arrival rate to customer service rate, x = a/h, also reflects the average number of arrivals during an average service time.