10POINTS!! just help me out with this :(AND STAY SFAE! AND STAY AWAY FROM THE KARENS!)

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол