I’m parallelogram abcd diagonal ac and bd intersect at point l. if al= x-2 and ac= 3x-16 , then which of the following represents the length of cl?

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.