If the sizes of interior angles of a pentagon are 2x0, 3x0, 4x0, 5x0
and 6x0, find the largest interior angle of the pentagon.

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.