08-key - 3. If 2 ( ) 125,000 20 30 C x x x = +-represents...

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Math 1314 Daily Poppers 08 1. Suppose the function 3 2 1 ( ) 1.8 12 3 P t t t - = + + represents the population (in million bacteria) t hours after a population study began at 8 a.m. What was the population at 8 a.m.? A. 12 million B. 5 million C. 15.3 million D. 3.6 million E. NOA
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2. Suppose the function 3 2 1 ( ) 1.8 12 3 P t t t - = + + represents the population (in million bacteria) t hours after a population study began at 8 a.m. At what rate was the population changing at 1 p.m.? A. increasing at the rate of 7 million bacteria per year B. decreasing at the rate of 7 million bacteria per year C. increasing at the rate of 15.3 million bacteria per hour D. decreasing at the rate of 5 million bacteria per hour E. NOA
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Unformatted text preview: 3. If 2 ( ) 125,000 20 30 C x x x = +-represents the cost in dollars of producing x items of a companys product, find the average cost per item if 60 items are produced. A. $368.64 B. $239.18 C. $176.13 D. $303.33 E. NOA 4. If the demand function for a product is 1500 0.28 p x =-, which of these is the revenue function? A. ( ) 1500 0.28 R x x =-B. 2 ( ) 1500 0.28 R x x x =-C. ( ) 1500 0.56 R x x =-D. 2 ( ) 1500 0.28 R x x x = + E. NOA 5. If the demand function for a product is 1500 0.28 p x =-, use the marginal revenue function to approximate the revenue realized on the sale of the 1000th item. A. $939.44 B. $940.56 C. $940.00 D. $1220.00 E. $1219.72...
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08-key - 3. If 2 ( ) 125,000 20 30 C x x x = +-represents...

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