4. An orange is thrown up in the air, and its height (in feet) is given by h(t) = -16t + 42t + 5 where t is time in seconds. (a) Find the velocity of the orange at t = 1 second. 6) If the orange continues with that velocity, when will it hit the ground (h = 0)?

b(I-n) +0= ,t The water depth in a harbor is 6 m at low tide and 14 m at high tide. One cycle is completed in 12 hours. a) Find the equation for the water depth, d(t) meters, as a function of the time, h hours, after high tide, which occurred at midnight. 240 A miz b) Algebraically find the times when the level of water is 11 meters during the first 12 hours

What is the maximum height of the ball and when does it hit the ground if a ball is thrown with a velocity of 40ft/s, its height (in feet) after t seconds is given by h(t)=-16t2+40t.