The Concentration Y of a Certain Drug in the Bloodstream

question 108

Multiple Choice

The concentration y of a certain drug in the bloodstream t hours after an oral dosage (with ) is given by the equation How long does it take for the concentration to reach 90? Round your answer to two decimal places. ​

• A) ​4.98 hours
• B) 2.98 hours
• C) ​0.23 hour
• D) ​1.39 hours
• E) ​100.00 hours

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