Mindy and Troy combined ate 999 pieces of the wedding cake. Mindy ate 333 pieces of cake and Troy had \dfrac14 4
1

start fraction, 1, divided by, 4, end fraction of the total cake.
Write an equation to determine how many pieces of cake (c)(c)left parenthesis, c, right parenthesis there were in total.

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.