Asmall shelter for delicate plants is to be constructed of thin plastic material. it will have a square end and a rectangular top and back, with an open bottom and front as shown in the figure. the total are of the four plastic sides is to be 1200in^2. a) express the volume of the shelter as a function of the depth x. b) what dimensions will maximize the volume of the shelter?

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone