A bowling alley has 10 lanes. During rush hour, the average inter-arrival time between groups of customers is 2 minutes, with a standard deviation of 1 minute. Each lane can handle one group at a time. The average time taken by a group at a lane is 18 minutes, with a standard deviation of 9 minutes. What is the average time a group of customers wait for a lane to free up, after arriving at the alley

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Rationalize the denominator- 12x/√x-10