3 to the 3 power + 3 (4+1/3)
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Answer:
The object's temperature after 18 minutes is of 426ºC.
Step-by-step explanation:
The temperature after t minutes is modeled by an exponential function, which has the following format:
In which T(0) is the initial temperature, and r is the cooling rate, as a decimal.
Its initial temperature is 730°C and it cools at a rate of 2.95% per minute
This means that . So
Find the object's temperature after 18.0 minutes.
This is . So
The object's temperature after 18 minutes is of 426ºC.