8. [0.34/1 Points] DETAILS PREVIOUS ANSWERS TANAPMATH7 9.6.054. Find dy/du, du/dx, and dy/dx when y and u are defined as follows. y = and u = Vx+ 9 dy = X du du X dx10. [-/1 Points] TANAPMATH7 9.6.070. ASK YOUR TEACHER PRACTICE ANOTHER Selllng Prlce of DVD Recorders The rise of digital video and the improvement to the DVD format are some of the reasons why the average selling price of standalone DVD recorders has dropped in the coming years. The function A(t) = (0 s t s 13) (t + \"094 gives the projected average selling price (in dollars) of standalone DVD recorders in year t, where t = 0 corresponds to the beginning of 2002.1\" How fast was the average selling price of standalone DVD recorders falling at the beginning of 2002? How fast was it falling at the beginning of 2013? (Round your answers to the nearest cent.) 2002 $ per year 2013 $ per year Need Help? 11. [-/1 Points] TANAPMATH7 9.6.083. ASK YOUR TEACHER PRACTICE ANOTHER Demand for Tablet Computers The quantity demanded per month, x, of a certain make of tablet computer is related to the average unit price, p (in dollars), of tablet computers by the equation 100 x = f(p) = T 810,000 pz It is estimated that t months from now, the average price of a tablet computer will be given by 400 P(t)= 1+%'/? +200 (OStSGO) dollars. Find the rate at which the quantity demanded per month of the tablet computers will be changing 16 months from now. (Round your answer to one decimal place.) tablet computers/month Need Help? _' Submit