Interpret and use an exponential model
QUESTION TYPEMix of allChange
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Question 1 of 8
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A model for the temperature difference of a cooling liquid from its surroundings uses degrees Celsius as the value unit
Let t be time in minutes. The model is used at non-negative whole multiples of 1 minute
\[Q(t)=80\,\left(\frac{4}{5}\right)^{t}\]
The model and its time unit are given below