Question 1138614
{{{A[o]=6.18}}}
-
{{{system(t=69,A=12)}}}



FIND k
{{{ln(12)=ln(6.18*e^(69k))}}}

{{{ln(12)=ln(6.18)+69k}}}

{{{ln(12)-ln(6.18)=69k}}}

{{{k=(1/69)(ln(12/6.18))}}}

{{{k=0.009617}}}


MODEL:
{{{highlight(A=6.18e^(0.009617t))}}}


The question #b means, evaluate A if t=15.