D Question 2 2.5 Follow example 1. What are the dimensions of an aluminum can that holds 80 cubic inches and that uses the least material? Round to one decimal place. radius = 3.3 inches and height = 2.3 inches. O radius = 3.7 inches and height = 1.9 inches. O radius = 2.8 inches and height = 3.2 inches. O radius = 2.3 inches and height = 4.8 inches. D Question 3 2.5 Follow example 2. Consider the same park (with the same dimensions). Sofia can walk on the sidewalk at a speed of 7 ft/sec. and through the grass in the park at 5 ft/ sec. What is the distance that Sofia should walk on the sidewalk to accomplish the minimum time? What is this minimum time? Use your calculator to avoid a complicated derivative. Round your answer to a whole number. Walk on sidewalk 1052 feet for a total time of 357 seconds. O Walk on sidewalk 945 feet for a total time of 368 seconds. O Walk on sidewalk 1554 feet for a total time of 372 seconds. O Walk on sidewalk 1388 feet for a total time of 370 seconds.", we can graph the function on a calculator and estimate the critical point, which is x = 1463 feet. This gives Bus stop y' = V (2000 - x)2 + 6002 600 (2000 - x)- X Figure 4.35: Modeling time to bus stopvertical sides at x = a and x = 9. Find the dimensions of the rectangle having the maximum possible area. V'= x a X 9 Figure 4.36: Find the rectangle of maximum area with one corner on y = vx (a, va) and (9, va). The area of this rectangle is given by R = Height . Length = Va(9 - a) = 901/2 - q3/2