· Jack is starting a new business selling rebuilt computers on eBay. He used market research to determine a function for the quantity of computers he can sell, 9(x) = - 4x + 9000, where x is the price of each computer.
Interpretations should not include mathematical symbols or mathematical terms like "slope" or "y-intercept".

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.