answer:

3) A farmer has 600 ft. of fencing to enclose a rectangular field U adjacent to a river. No fencing is required along the river. Find the 1 2 dimensions of the field for the area to be maximum. length: ft. width: ft. Done 7 8 Tab4) The total cost function for producing x tables in a certain furniture factory is determined to be C ( x ) = 0.02 x2 + 20 x + 100, for 10