Which describes the effect of the transformations on the graph of f(x) = x^2 when changed to f(x) = 3(x+2)^2 - 4

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.