A baseball diamond is a square with side 90 feet. A batter hits the ball and runs toward first base with a speed of 24 ft/s. 90 ft (a) At what rate (in ft/s) is his distance from second base decreasing when he is halfway to first base? (Round your answer to one decimal place.) -8 X ft/s (b) At what rate (in ft/s) is his distance from third base increasing at the same moment? (Round your answer to one decimal place.) 13 X ft/s

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