AM-328

Exponential and logarithmic models

A Math · Secondary 3 · Medium · Exponential and logarithmic models

The temperature

T\,^{\circ}\text{C}

of a drink is modeled by

T=22+58e^{-0.4t}

, where

t

is the time in hours after it is left to cool. Find the temperature after 3 hours, correct to 1 decimal place.

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