Exam 13: A: Definite Integrals - Techniques

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The Lorenz curve for the income distribution in a certain country in 2005 is given by The Lorenz curve for the income distribution in a certain country in 2005 is given by   . Find the Gini coefficient of income for 2005 for this country. Round your answer to four decimal places. ​ . Find the Gini coefficient of income for 2005 for this country. Round your answer to four decimal places. ​

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Suppose that a vending machine service company models its income by assuming that money flows continuously into the machines, with the annual rate of flow given by Suppose that a vending machine service company models its income by assuming that money flows continuously into the machines, with the annual rate of flow given by   in thousands of dollars per year. Find the total income from the machines predicted by the model over the first 5 years. Round your answer to the nearest thousand dollars. ​ in thousands of dollars per year. Find the total income from the machines predicted by the model over the first 5 years. Round your answer to the nearest thousand dollars. ​

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For what value of c does ? For what value of c does ?   ​

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Use integration by parts to evaluate the integral Use integration by parts to evaluate the integral   ​

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Suppose the marginal cost for x units of a good is Suppose the marginal cost for x units of a good is   (dollars per unit) and if the fixed cost is $200. What is the total cost of producing 4 units of this good? Round your answer to the nearest dollar. ​ (dollars per unit) and if the fixed cost is $200. What is the total cost of producing 4 units of this good? Round your answer to the nearest dollar. ​

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The supply function for a good is The supply function for a good is   , where p is the number of dollars and x is the number of units. If the equilibrium price is $27 what is the producer's surplus at the equilibrium price? Round to the nearest cent. ​ , where p is the number of dollars and x is the number of units. If the equilibrium price is $27 what is the producer's surplus at the equilibrium price? Round to the nearest cent. ​

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Determine the most appropriate method or integral formula for evaluating the given integral. Next, evaluate the integral. ​ I. Integration by parts II. Determine the most appropriate method or integral formula for evaluating the given integral. Next, evaluate the integral. ​ I. Integration by parts  II.   III.   IV.    III. Determine the most appropriate method or integral formula for evaluating the given integral. Next, evaluate the integral. ​ I. Integration by parts  II.   III.   IV.    IV. Determine the most appropriate method or integral formula for evaluating the given integral. Next, evaluate the integral. ​ I. Integration by parts  II.   III.   IV.    Determine the most appropriate method or integral formula for evaluating the given integral. Next, evaluate the integral. ​ I. Integration by parts  II.   III.   IV.

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Suppose that a vending machine service company models its income by assuming that money flows continuously into the machines, with the annual rate of flow given by Suppose that a vending machine service company models its income by assuming that money flows continuously into the machines, with the annual rate of flow given by   in thousands of dollars per year. Find the total income from the machines predicted by the model over the first 5 years. Round your answer to the nearest thousand dollars. ​ in thousands of dollars per year. Find the total income from the machines predicted by the model over the first 5 years. Round your answer to the nearest thousand dollars. ​

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Use integration by parts to evaluate Use integration by parts to evaluate   . ​ . ​

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A small brewery considers the output of its bottling machine as a continuous income stream with an annual rate of flow at time t given by A small brewery considers the output of its bottling machine as a continuous income stream with an annual rate of flow at time t given by   in thousands of dollars per year. Find the income from this stream for the next 30 years. Round your answer to the nearest dollar. ​ in thousands of dollars per year. Find the income from this stream for the next 30 years. Round your answer to the nearest dollar. ​

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Find the area of the shaded region for the graph given below. Find the area of the shaded region for the graph given below.

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Evaluate the integral Evaluate the integral   . ​ . ​

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Suppose the Lorenz curve for the distribution of income of a certain country is given by Suppose the Lorenz curve for the distribution of income of a certain country is given by   Find the Gini coefficient of income. Round your answer to three decimal places. ​ Find the Gini coefficient of income. Round your answer to three decimal places. ​

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In a manufacturing process involving several machines, the average down time t (in hours) for a machine that needs repair has the probability density function In a manufacturing process involving several machines, the average down time t (in hours) for a machine that needs repair has the probability density function   . Find the probability that a failed machine's down time is 4 hours or more. Round your answer to three decimal places. ​ . Find the probability that a failed machine's down time is 4 hours or more. Round your answer to three decimal places. ​

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Use integration by parts to evaluate the integral Use integration by parts to evaluate the integral   ​

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Suppose that the Carter Car Service franchise finds that the income generated by its stores can be modeled by assuming that the income is a continuous stream with a monthly rate of flow at time t given by Suppose that the Carter Car Service franchise finds that the income generated by its stores can be modeled by assuming that the income is a continuous stream with a monthly rate of flow at time t given by   (dollars per month). Find the total income from a Carter Car Service store for years 3 through 5 of operation and round to the nearest penny. ​ (dollars per month). Find the total income from a Carter Car Service store for years 3 through 5 of operation and round to the nearest penny. ​

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The rate of depreciation of a building is given by The rate of depreciation of a building is given by   dollars per year,   . Use the definite integral to find the total depreciation over the first 20 years. ​ dollars per year, The rate of depreciation of a building is given by   dollars per year,   . Use the definite integral to find the total depreciation over the first 20 years. ​ . Use the definite integral to find the total depreciation over the first 20 years. ​

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Use an integral formula to evaluate Use an integral formula to evaluate   . ​ . ​

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Find the area of the shaded region for the graph given below. ​ Find the area of the shaded region for the graph given below. ​   ​

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If the demand function for a product is If the demand function for a product is   and the supply function is   where p is in millions of dollars and x is the number of thousands of units. Find the consumer's surplus. Round your answer to the nearest million dollars. ​​ and the supply function is If the demand function for a product is   and the supply function is   where p is in millions of dollars and x is the number of thousands of units. Find the consumer's surplus. Round your answer to the nearest million dollars. ​​ where p is in millions of dollars and x is the number of thousands of units. Find the consumer's surplus. Round your answer to the nearest million dollars. ​​

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