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13-12-2022
Mathematics

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(minutes) r(t) (gallonsper minute) Water is flowing into tank at the rate r(t) , where r(t) is measured in gallons per minute and is measured in minutes. The tank contains 15 'gallons of water at time t = 0. Values of r(t) for selected values of are given in the table above_ Using trapezoidal sum with the three intervals indicated by the table what is the approximation of the number of gallons of water in the tank at time t = 9 52 (B) 57 (C) 67 (D) 77 (E) 79

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