On a certain baseball team the average age is 26.7 years old with a standard deviation of 2.9 years find the age that is 3 standard deviation above the mean

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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.