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Calculus

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A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity, Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.2 percent per second. Using formulas, express Q as a continuous function of time, t, in seconds

Q(t) = ______ if 0 ¡Ü t ¡Ü ______
and Q(t) = ______ if _____ ¡Ü t ¡Ü ¡Þ

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