I am in pre calculus math 120

-/1.5 Points] DETAILS SPRECALC7 1.8.119. MY NOTES ASK YOUR TEACHER Using calculus, it can be shown that if a ball is thrown upward with an initial velocity of 80 ft/s from the top of a building 250 ft high, then its height h above the ground t seconds later will be h = 250 + 80t - 16t2. During what time interval (in seconds) will the ball be at least 26 ft above the ground? (Enter your answer using interval notation.) FFFER