Question: A small object with an initial temperature of135 degrees Fahrenheit is dropped into a tub with a temperature of60 degrees Fahrenheit. The functionf(t)=Ce(kt)+60represents the situation,

A small object with an initial temperature of135

degrees Fahrenheit is dropped into a tub with a temperature of60

degrees Fahrenheit. The functionf(t)=Ce(kt)+60represents the situation, wheretis time in minutes,Cis a constant, andkis a constant.

After6minutes the object has a temperature of85degrees. What is the approximate value ofk?Round to three decimal places.

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