An airplane is flying in still air with an airspeed of 240 miles per hour. If it is climbing at an angle 23°, find the rate at which it is gaining altitude. Round your answer to four decimal places.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Which expression is equal to (f+g)(x)?