welch construction has found that the value of the company tractor is decreasing at a rate give by v(t)= -390te-0.012t^2, where t represents the number of years after purchase. if the company purchased the tractor for $17650, what is the value of the tractor 3 years after purchase
"=-16250e^{-0.012t^2}+C"
Given "U(0)=17650"
"U(t)=-16250e^{-0.012t^2}+33900"
"U(3)=\\$19313.55"
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