Question 315152
{{{P(t)=54e^(kt)}}}
{{{P(12)=54e^(12k)=38}}}
{{{e^(12k)=0.7037}}}
{{{12k=-0.3514}}}
{{{k=-0.0293}}}
{{{P(t)=54e^(-0.0293t)}}}
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{{{drawing( 300,300, -1, 14, -10, 90,grid(1),circle(0,54,0.3),circle(12,38,.3), graph( 300,300, -1, 14, -10, 90, 54e^(-0.0293x))) }}}