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Solve the Problem S(t)=200⋅3t\mathrm{S}(\mathrm{t})=200 \cdot 3^{\mathrm{t}} What Is the Doubling Time for the Yearly Sales? Round

Question 261

Multiple Choice

Solve the problem.
-Yearly sales of an electronic device S(t) , in millions of dollars, tyears after 2009 can be estimated by
S(t) =200⋅3t\mathrm{S}(\mathrm{t}) =200 \cdot 3^{\mathrm{t}}
What is the doubling time for the yearly sales? Round your answer to the nearest tenth.


A) 0.7yr0.7 \mathrm{yr}
B) 1.3yr1.3 \mathrm{yr}
C) 5.5yr5.5 \mathrm{yr}
D) 0.6yr0.6 \mathrm{yr}

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