AM-331

Exponential and logarithmic models

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

A liquid cools according to

T=22+68e^{-0.4t}

, where

T

is the temperature in

^\circ\text{C}

and

t

is the time in hours. Find the temperature of the liquid after 3 hours, correct to 1 decimal place.

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