Question: User: 2. Cooling coffee
The temperature of coffee in a room is modelled by T(t) = 21 + 69(0.86)^t, where T is in °C and t is time in minutes.
a. What was the coffee's initial temperature?
b. What temperature does the model approach over time? Explain its meaning.
c. Find the temperature after 8 minutes.
d. After how many minutes will the coffee first be below 45°C?
Graph/shape: A temperature-vs-time exponential decay model is shown in the top-center of the page; the equation T(t) = 21 + 69(0.86)^t is highlighted near the top-left/center, with no plotted axes visible.
2. Cooling coffee The temperature of coffee in a room is modelled by T(t) = 21 + 69(0.86)^t, where T
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