8.1 Hmwk - Matrices and System: X n UEF MY UTEP X Institution Page + X https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=32106563&tags=autosave#Q5 M C 1 R 1 1 2 2 4 0 15 / 4 V 5/4 4 - 1 -5 4 12 8 15 Step 2 Now add -1 times the first row to the second row. 4 4 11 -R + R2 - 0 -3 - 3 -9 4 4 12 8 15 Step 3 Add -4 times the first row to the third row. 2 4 0 -3 -9 4 -4R, + R3 - LO 4 This is the required row-equivalent matrix. W 12:47 PM Type here to search ? 10/25/2023UEF MY UTEP X Institution Page 8.1 Hmwk - Matrices and System X + n X C @ https://www.webassign.net/web/Student/Assignment-Responses/tutorial?dep=32106563&tags=autosave#question5... M (x, y, z) = 19, 8, 3 Need Help? Read It Watch It Submit Answer 15. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use a system of linear equations to find the quadratic function f(x) = ax + bx + c that satisfies the given conditions. Solve the system using matrices. f(-2) = -5, f(1) = -5, f(2) = -17 f ( x ) = Need Help? Read It Watch It Submit Answer 16. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A state government borrows $2,000,000 at simple annual interest. Some of the money is borrowed at 7%, some at 8.5%, and some at 9.5%. Use a system of linear equations to determine how much (in dollars) is borrowed at each rate given that the total annual interest is $157,000 and the amount O=1 77.F 12:47 PM Type here to search 10/25/2023UEF MY UTEP X Institution Page 8.1 Hmwk - Matrices and System X + X C @ https://www.webassign.net/web/Student/Assignment-Responses/tutorial?dep=32106563&tags=autosave#question5.. M Need Help? Read It Watch It Submit Answer 16. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A state government borrows $2,000,000 at simple annual interest. Some of the money is borrowed at 7%, some at 8.5%, and some at 9.5%. Use a system of linear equations to determine how much (in dollars) is borrowed at each rate given that the total annual interest is $157,000 and the amount borrowed at 8.5% is four times the amount borrowed at 9.5%. Solve the system of linear equations using matrices. at 7% $ at 8.5% at 9.5% $ Need Help? Read It Submit Answer 17. [1/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, express x, y, and z in terms of the real number a.) Type here to search m OEl 77.F 12:48 PM 10/25/2023