At a certain time, the length of a rectangle is 5 feet and its width is 3 feet. at that same moment, the length is decreasing at 0.5 feet per second and the widthis increasing at 0.4 feet per second.

what is the length of the diagonal at that time?
how fast is the length of the diagonal changing? is this length increasing or decreasing?

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2