Velocity of a Hot-Air Balloon A hot-air balloon rises vertically from the ground so that its height after t sec is given by the following function. h = ²² + t ft where (0 ≤ t ≤ 60) (a) What is the height of the balloon at the end of 34 sec? ft (b) What is the average velocity of the balloon between t = 0 and t = 34? ft/sec (c) What is the velocity of the balloon at the end of 34 sec? ft/sec

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