Practice DCL Trio. on---\" _ ,_ 1. The rate of production of items at a factory is given approx' 1 lmate y by the functio n , __.___ 2 . N (t)._80+ t t ,fOl OSt 10,Where N'(I) is the numb ()l I CIHS \"Minced er 2 C]: It p p hour after the factory has been operating for t hours. How ' in eight hours? many Items will be produced 2. A smoothie shop has calculated that it has a marginal daily prot function in d 11 f , _ a 0 arS, P (x) '1'20 + 0.12x 0.0012x2. If the shop Sells no smoothies on a given day it lose: $60. What prot will the shop make from selling 90 smoothies in one day? A fertilizer manufacturer estimates that its marginal cost of producing fertilizer is U.) I 9 2 1 . C (x) x + x dollars per ton at a production level of x tons per day. Fixed : 1000 50 are $400 per day. Find the cost of producing 200 tons of fertilizer per day. costs (x) - 0.06x + 40 , in dollars per item sold