Question 1101029
5000=57000e^-0.2t +3500
1500=57000e^-0.2t
0.02631578947368421052631578947368=e^-0.2t
ln 0.02631578947368421052631578947368=ln e^-0.2t=-0.2t ln e=-0.2t
t=18.188 years before the generator depriciates to $5000
&#9786;&#9786;&#9786;&#9786;