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Water leaks from a tank at a rate of 115−2?2‾‾‾‾‾‾‾‾√115−2t2 liters/ hour, where ?t is the...

Water leaks from a tank at a rate of

115−2?2‾‾‾‾‾‾‾‾√115−2t2

liters/ hour, where ?t is the number of hours after 7am. How much water is lost between 9:30 am and 11:30 am?

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