Which statement is true for the graph of f(x) = 2x3 – 6x2 – 48x + 24? (4, –140) is a relative minimum; (–2, 77) is a relative maximum (4, –136) is a relative minimum; (–2, 80) is a relative maximum (–2, 80) is a relative minimum; (4, –136) is a relative maximum (–2, 77) is a relative minimum; (4, –140) is a relative maximum

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.