Tonisha buys a set of triangular floor tiles to replace the tiles on her bathroom floor. If the dimensions of each tile are as shown below. Which of the following statements
about the triangular floor tiles is accurate? Select all that apply.

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.