A model for the height h (in feet) of a Ferris wheel car is  h = 70 + 70 sin(4?t),  where t is the time (in minutes). (The Ferris wheel has a radius of 70 feet.) This model yields a height of 70 feet when t = 0. Alter the model so that the height of the car is 1 foot when t = 0. (Assume that 1 foot is the minimum value of the model.) h =

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