Precalculus

5. [-/7.14 Points] DETAILS WANEFMAC7 2.1.020. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER For the demand equation, express the total revenue R as a function of the price p per item. HINT [See Example 3.] q = -5p + 1100 R(P) = Sketch the graph of the resulting function. Graph Layers After you add an object to the graph you can use Graph Layers to view and edit its O 70000 properties. 60000 Fill 50000 49000 No 39090 Solution 20080 10000 -20 20 40 60 80 100 120 140 160 180 200 220 240 260 280 Help WebAssign. Graphing Tool Determine the price p that maximizes total revenue. p = $ Need Help? Read It Talk to a Tutor 6. [-/7.14 Points] DETAILS WANEFMAC7 2.1.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Crude oil imports to one country from another for 2009-2013 could be approximated by the following model where t is time in years since the start of 2000. I(t) = -34t2 + 800t - 1,000 thousand barrels per day (9 s t s 13) According to the model, approximately when were oil imports to the country greatest? HINT [See Example 1.] (Round your answer to two decimal places.) t = [ How many barrels per day were imported at that time? (Round your answer to two significant digits.) barrels Need Help? Read It Talk to a Tutor 7. [-/7.14 Points] DETAILS WANEFMAC7 2.1.031. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The market research department of the Better Baby Buggy Co. predicts that the demand equation for its buggies is given by q = -3.5p + 1260 where q is the number of buggies it can sell in a month if the price is $p per buggy. At what price should it sell the buggies to get the largest revenue? HINT [See Example 3.] p = $0 What is the largest monthly revenue? $ Need Help? Read it Watch It Talk to a Tutor