On a test that has a normal distribution, a score of 40 falls three standard deviations above the mean, and a score of 32 falls one deviation below the mean. Determine the mean of this test

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?