AM-74

Exponential and logarithmic models

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

A function is given by

T = 25 - 40e^{-0.4t}

, where

T

is the temperature in

^\circ C

and

t

is the time in minutes after an object is removed from a freezer. Find the temperature of the object after 3 minutes, correct to 1 decimal place.

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