13. Which is a reasonable domain for the function in Item 12? A 0 < x < 3 C 68 < x < 80 B 0

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

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.