At the check-in counter of a hotel, the management likes to have a mean target customer processing time of 5.5 minutes with /- 1.5 minutes tolerance. Data were collected and analyzed. It is found it is actually taking 5 minutes on an average per customer. The standard deviation of customer processing time is 1.5 minute. What in the chance that processing time would be less than 3.5 minutes

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?