The Concentration $x$ Of a Certain Drug in an Organ After $t$

Multiple Choice

The concentration $x$ of a certain drug in an organ after $t$ minutes is given by $x = 0.06 \left( 1 - e ^ { - 0.1 t } \right)$ . Find the initial concentration of the drug when $t = 0$ .

A) 0.06
B) 1.00
C) 0.00
D) 0.12
E) 0.16
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