A laptop computer was purchased for $2500. After 2 years, the value of the laptop is expected to be $1600. If the value of the laptop follows an exponential decay model, express the value of the laptop as a function of the years since it was purchased. Ov(t) = 1600(0.64) t Ov(t) = 2500(0.8) +-2 Ov(t) = 1600(0.8)-2 Ov(t) = 2500(0.64)* Ov(t) = 2500(0.8)

The​ half-life of a certain tranquilizer in the bloodstream is 45 hours. How long will it take for the drug to decay to 88​% of the original​ dosage? Use the exponential decay​ model, A=A0ekt​, to solve.

The count in a bacteria culture was 400 after 15 minutes and 1200 after 35 minutes. Assuming the count grows exponentially,What was the initial size of the culture?   Find the doubling period.   Find the population after 80 minutes.   When will the population reach 10000.   You may enter the exact value or round to 2 decimal places.

A cup of 205° coffee on a table in a 72° room loses approximately 15% of its temperature every minute until it reaches room temperature. The resulting exponential model for the temperature, t, after m minutes can be approximated by the model t = 133(0.85)m+72. What is the temperature after 3 minutes?