Number 8

4. (15 points) Find the derival 5. (15 points) The demand equation for a certain commodity is given by p = 17 X - IZx+ 434, and the corresponding price p that maximizes revenue. 6. (15 points) A rectangular garden of area 208 sqft is to be surrounded on three sides by a brick wall costing $8 per foot and one side by a fence costing $5 per foot. Find the dimensions of the garden such that the cost of material is minimized. 7. (16 points) Evaluate e ox - 9 dx 0 e 2x 8. (16 points) Evaluate 10 + 103x dx 9. (16 points ) Evaluate (x2 - 9x5 + 2x/ 1 dx 10. (15 points) Use the first and the second derivative to graph f(x)_ x2 - 9