The Amount D, in Milligrams, of a Drug in the Bloodstream

question 15

Multiple Choice

The amount D, in milligrams, of a drug in the bloodstream t minutes after injection is given by . ​
There are two times when there are 7 milligrams of the drug in the bloodstream.Find both times.Round your answer to two decimal places if necessary.

• A) There are never 7 milligrams of the drug in the blood.
• B) and
• C) and
• D) and

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