Given the depth vs. clock time function y = f(t) = .017 t2 + -2.11 t + 81, with depth in cm when clock time is in seconds, find the clock time t such that f(t) = 62.52794 cm and find f(t) when t = 33 cm. Find the clock time when water depth is 45.52794 cm. Using the same function determine the depth at clock time t = 12 sec.