The stopping distance, d ( in feet) for a car moving at a velocity (speed) v miles per hour is modeled by the equation: d = 0.04 v squared + 1.1 v What is the stopping distance for a velocity of 40 miles per hour? a. 108 ft c. 120 ft b. 72 ft d. 138 ft

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.