Question: My question is below. 3. (a) Let f(t) be the depth, in centimeters, of water in a tank at time t, in minutes. i. What

My question is below.

3. (a) Let f(t) be the depth, in centimeters, of water in a tank at time t, in minutes. i. What does the sign of f'(t) tell us? ii. Explain the meaning of f'(30) = 7. Include units. iii. Estimate f(32) if f (30) = 50. (b) A yam has just been taken out of the oven and is cooling off before being eaten. The temperature, T, of the yam (measured in degrees Fahrenheit) is a function of how long it has been out of the oven, t (measured in minutes). Thus, we have T = f(t) i. Is f' (t) positive or negative? Why? ii. What are the units for f'(t)? iii. Will f' (t) = 0, if so when

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