The residue in each case is the difference between actual and predicted sales. Thus: 55 - 40 = 15 150 - 150 = 0 325 - 300 = 25 510 - 500 = 10 800 - 780 = 20 1000 - 990 = 10 These add up to be: 15 + 25+ 10 +20 +10 = 80
This is the concept of applications of polynomial equations. Given that the height of the ball is modeled by the function: h(t)=16t^2-64t the maximum height will be calculated as follows; h(t)=16t(t-4) therefore: t=0 or t=4 h(4)=-64(4)+16(4^2) =0
