u D ' Question 8, 6.1.49 HW Score. 53.85 A, 7 of 13 pomts 0 Points: 0 of 1 Find the area bounded by the graphs of the indicated equations over the given interval (when stated). Compute answers to three decimal places. y = 3x2; y = 27 E) The area, calculated to three decimal places, is El square units. Question 9, 6.1.51 Find the area of the region enclosed by the curves y = x2 8 and y = 8. <:> The area of the region enclosed by the curves is D. (Round to the nearest thousandth as needed.) Question 10, 6.1.53 Find the area bounded by the graphs of the indicated equations over the given interval (when stated). Compute an y=x2 +3; y=4x-4; -1 5x52 The area, calculated to three decimal places, is D square units. Question 11, 6.1.81 -BE ) HW Score: 53.85%, 7 of 13 points Pan 1 of 3 0 Points: 0 of 1 An amusement company maintains records for each video game it installs in an arcade. Suppose that C(t) and R(t) represent the total accumulated costs and revenues (in thousands of dollars), respectively, t years after a particular game has been installed and the derivatives C'(t) and R' (t) are the following functions. C/(t) = 5 and R1\") = 82_ 05' Find the area between the graphs of C' and R' over the interval on the t-axis from 0 to the useful life of the game and interpret the results. What is the useful life of the game? t= years (Round to the nearest tenth as needed.) Question 12, 6.1.83-BE > HW Score: 53.85%, 7 of 13 points Part 1 of 3 0 Points: 0 of 1 In order to study the effects of World War II on a certain country's economy, an economist used data from that country's census bureau to produce the following Lorenz curves for the distribution of income in 1935 and 1947. f(x) = x2'2 Lorenz curve for 1935 g(X) = X1'7 Lorenz curve for 1947 Find the Gini index of income concentration for each Lorenz curve and interpret the results. What is the Gini index for 1935? (Round to three decimal places as needed.) Question 13, 6.1.85-BE > HW Score: 53.85%, 7 of 13 points Part 1 of 3 0 Points: 0 of 1 Lorenz curves also can be used to provide a relative measure of the distribution of the total assets of a country. Using data in a report by the economic committee of a certain country, an economist produced the following Lorenz curves for the distribution of total assets in the country in 1963 and 1983, shown below. f(x) = x9 Lorenz curve for 1963 g(x) = x13 Lorenz curve for 1983 Find the Gini index of income concentration for each Lorenz curve and interpret the results. What is the Gini index for 1963? (Round to three decimal places as needed.)