Unformatted text preview: MAC1147: Quiz #9
11/3/2009
In the topright corner of a clean sheet of paper, write your name, UFID, and section number. Please use a pen with blue or black ink. When you are nished, FOLD your paper in half lengthwise and write your name on the back. 1. For each of the following situations, state whether an exponential growth model, an exponential decay model, a logistic growth model, or a learning curve model is most appropriate to analyze the problem. (a) After being driven nearly to extinction, the American Bison is making a comeback. Suppose growth begins to slow, and you want to determine whether this is due to environmental limitations, or something articial such as a disease or an increase in hunting. (b) Your unscrupulous lab partner has left yet another turkey sandwich out after lunch. You want to make the best of the situation so you decide to culture it to see how quickly Salmonella enterica will grow on it. (c) After you nish culturing the sandwich, you seal it up tightly and put it back in the fridge. You want to measure how long it takes for the temperature of the sandwich to reach the temperature inside the refrigerator. 2. Suppose you order an 16inch (diameter) pizza because you have friends coming over, but then your annoying roommate eats 180◦ of the pizza while you were cleaning the bathroom. To impress your friends you decide to compute the area of the pizza that your roommate ate. How much was eaten? 3. (BONUS) Draw the entire unit circle, with angles labeled in either degrees or radians, and coordinates labeled. 1 ...
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 Fall '08
 GERMAN
 Malthusian growth model, Logistic function, exponential growth model, exponential decay model, unscrupulous lab partner

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