Solve the problem.
-The formula $D = 8 e ^ { - 0.6 h }$ can be used to find the number of milligrams D of a certain drug that is in a patient's bloodstream h hours after the drug
has been administered. The drug is to be administered again when the amount in the bloodstream reaches 4 milligrams.
What is the time between injections?

Question

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The Answer of Solve the problem.
-The formula $D = 8 e ^ { - 0.6 h }$ can be used to find the number of milligrams D of a certain drug that is in a patient's bloodstream h hours after the drug
has been administered. The drug is to be administered again when the amount in the bloodstream reaches 4 milligrams.
What is the time between injections?

Solve the Problem D=8e−0.6hD = 8 e ^ { - 0.6 h }D=8e−0.6h

Solve the Problem $D = 8 e ^ { - 0.6 h }$