Hi I need help with questions 11-14 please

12. [-/1 Points] DETAILS WANEFMAC7 5.1.043. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Population Movement In 2000 a country's population, broken down by regions, was 53.6 million in the Northeast, 64.4 million in the Midwest, 100.2 million in the South, and 63.2 million in the West. In 2010 the population was 54.3 million in the Northeast, 70.9 million in the Midwest, 119.6 million in the South, and 70.9 million in the West. Set up the population figures for each year as a row vector. Northeast Midwest South West Population in 2000 (in millions) Population in 2010 (in millions) Use matrix operations to find the net increase or decrease of population in each region from 2000 to 2010. Northeast Midwest South West Population Net Change (in millions) Assuming the same population growth from 2010 to 2020 as from 2000 to 2010, use matrix operations to predict the population in each region in 2020. Northeast Midwest South West Population in 2020 (in millions) Need Help? Read It 13. [-/1 Points] DETAILS WANEFMAC7 5.1.045. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Foreclosure Crisis Suppose the following table shows the number of foreclosures in three states in April through August of a given year April May June July Aug. California 55,500 51,700 54,600 56,500 59,400 Florida 19,600 19,200 23,800 22,400 23,600 Texas 8,800 9,100 9,300 10,600 10,100 Use matrix algebra to determine the total number of foreclosures in each of the given months. April May June July Aug. Total Foreclosures11. [-I1 Points] | DETAILS I WANEFMAC7 5.1.042. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Revenue The following spreadsheet gives annual production costs and prots at Gauss-Jordan Sneakers, Inc. Production Costs Gauss Grip Use matrix algebra to compute the revenues from each sector each year. 14. [40.39 Points] DETAILS WANEFMAC'I 5.1.052. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Tourism in the 19905 Suppose the following table gives the number of people (in thousands} who visited Australia and South Africa In 1998. Referring to the 1998 tourism gures, assume that the following (ctitious) gures represent the corresponding numbers from 1938. Take A to be the 3 x 2 matrix whose entries are the 1998 tourism gures and take 3 to be the 3 x 2 matrix whose entries are the 1988 tourism gures. (a) Compute the matrix A B. l:] [:1] :1 C] I :1 :1 l I What does this matrix represent? 0 It represents changes in number of visitors over the period 19881998. 0 It represents changes In number of visitors in 1938. 0 It represents changes in number of visitors over the period 19982008. 0 It represents changes in number of visitors in 1998. (b) Assuming that the changes in tourism over 19881998 are repeated in 19982008, give a formula {in terms ofA and B} that predicts the number of visitors from the three regions to Australia and South Africa in 2008. E