TESTING The scores on a test administered to prospective employees are normally distributed with a mean of 100 and a standard deviation of 12.3. About what percent of the scores are between 90 and 115?

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6