Question

Not sure if #3 is right but need help with 4,5,6

Nov 4U 3. Find the absolute extreme values of the function gx)---72x+5 over the (8) --194 (3,-13 nin) -3,40) 2 Rema asta a Revenue o04/cm while the material for the top and sides cests $0.02/cm. Find the dmensions that wil minimize the cost of the con (6) 4. A soup can is to be constructed so that it has a volume of 500 cm. The material for the bottem costs Cost fus Profia f Econ 5. The cost, in deillars, of making x cedar garden sets per day is modelled by the function Cox)-3000+19x and ーthe ricepergerdensetater)-1000-r. Determine the followng a) the revenue function (4) b) the profit function () d) the marginal profit for the sale of 15 garden sets c) the marginal profit function ( (3) d)How may groen sets should be sold to maximize profit? 6. An open topped box is to be constructed from a 70 cm by 30 cm piece of metal by cutting squares out of the corners and folding up the sides. What is the maximum possible volume of this bex? (4)

Answer 1

01 we --5сть CosI こで 2. Cast 9 tob and Mee オ^ 5 0 2-3 50 44 o 下 3 clAL 6 20

iat_4_-minima- 213 ケい毎 pr 3 4 gc absutnte mama nd minima