2. The length L of the main supporting cable of a suspension bridge can be calculated by 21/2 4h where a is half the length of the bridge and h is the distance from the deck to the top of the tower where the cable is attached. Assume that a is 80 meters and h is 18 meters. Determine the length of the main supporting cable of the bridge. Assign the value of the length to a variable named p2 and show 4-digits of precision This problem does NOT require a plot Save your code in the file named final.m