The sum of two nonnegative numbers is 800. What is the maximum value of the product of these two numbers? The maximum product of the numbers is :] For an open-topped rectangular box, With a square base a: by x cm and height h cm, nd the dimensions giving the minimum surface area, given that the volume is 14 cm3. NOTE: Enter exact answers, or round to three decimal places. For a cylinder open at one end with radius r em and height h, cm, nd the dimensions giving the minimum surface area, given that the volume is 12 cm3. NOTE: Enter exact answers, or round to three decimal places