An ice cube has a side length of 5 cm. The ice cube is melting, and the formula is given as V = (5 – 0.5t)3, where V is the volume in cubic centimetres, and t is the time in minutes. a) What is the Volume of the cube at 3 minutes? b) What is the average rate of change in the first 3 minutes? c) What is the instantaneous rate of change at exactly 3 minutes?

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Exponential Growth Model

The relation that represents an exponential function is: