MTH 211 Name PDF Upload Week 9 October, 2020 Section 4.4-4.5 25 points 1. Find the critical numbers of h(x) =x -x. 2. (30pts) For Luce Landscaping, the total revenue and the total cost for yard maintenance of r homes are given by R(x) = 1000x - x2 and C(x) = 3000 + 20r. What is the maximum profit this company can earn? 3. From a thin piece of cardboard 14 in by 14 in, square corners are cut out so that the sides can be folded up to make a box. What dimensions will yield a box of maximum volume? What is that maximum volume? 4. An apple orchard has an average yield of 36 bushels of apples per tree in the tree density is 22 trees per acre. For each unit increase in tree density, the yield is decreased by 2 bushels per tree. How many trees per acre should be planted to maximize the yield