9:54 C Done mylab.pearson.com AA C Brandon Archer ? Question 17, 8.2.21 HW Score: 6.48%, 1.3 of 20 Part 2 of 2 points Points: 0.08 of 1 Save Write the system of equations corresponding to the augmented matrix. Then perform the row operations R2 = - 6r, + 2 and R3 = 21 + 13 on the given augmented matrix. 1 -6 5 2 -5 6 5 - 2 42 5 Which of the following is the system of equations corresponding to the augmented matrix? O A. x - 6y +5 = 2 B. x - 6y + 5z = 2 6x - 5y +6 = 5 6x - 5y + 6z = 5 2x + 4y+2 = - 2x + 4y + 2z = 5 O C. x - 6y + 5z = 2w O D. x - 6y + 5z +2 = 0 6x - 5y + 6z = 5w 6x - 5y + 6z +5 = 0 2x + 4y + 2z = 5w -2x + 4y + 2z +5 = 0 Perform the row operations R2 = - 6r, + 2 and R3 = 21 + 13 on the original matrix given in the problem statement, and enter the resulting matrix below. 0000 00009:54 C Done mylab.pearson.com AA C Brandon Archer ? HW Score: 6.48%, 1.3 of 20 Question 20, 8.2.65 points O Points: 0 of 1 Save Solve the following system of equations using matrices (row X+y+z+W=8 operations). If the system has no solution, say that it is 2x - y +z=2 inconsistent. 3x + 2y +z -w=11 x - 2y - 2z + 2w= -2 Select the correct choice below and, if necessary, fill in the answer box(es) in your choice. O A. The solution is ( D (Simplify your answers. O B. There are infinitely many solutions. The solution can be written as (x,y,z, w) | x = ,y= ,z= ,w is any real number} (Simplify your answers. Type expressions using w as the variable.) O C. There are infinitely many solutions. The solution can be written as {(x,y,z,w) |x = , y= , z is any real number, w is any real number}. (Simplify your answers. Type expressions using z and w as the variables.) O D. There are infinitely many solutions. The solution can be written as (x,y,z,w) | x= , y, z, and w are any real numbers.} (Simplify your answer. Type an expression using y, z, and w as the variables.) O E. The system is inconsistent.9:56 0 Done mylab.pearson.com AA C Brandon Archer Question 6, 8.3.35 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Save Solve the system of equations using Cramer's Rule if it is applicable. x + 2y - Z= - (1 ) X - 4y + Z = (2) -3x + 2y - Z = 8 (3 ) Select the correct choice below and fill in any answer boxes within your choice. O A. Cramer's Rule is applicable. The solution is x = , y= , and z= (Simplify your answers.) O B. Cramer's Rule is not applicable.9:57 C Done mylab.pearson.com AA C Brandon Archer Question 7, 8.3.39 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Sav Solve the system of equations using Cramer's Rule if it is applicable. x + 2y - Z= (1) 4x - 4y + Z= 0 (2) - 2x + 2y - 5z = 0 (3 ) Select the correct choice below and fill in any answer boxes within your choice. O A. Cramer's Rule is applicable. The solution is x = , y= , and z= (Simplify your answers.) O B. Cramer's Rule is not applicable.9:57 C Done mylab.pearson.com AA C Brandon Archer Question 8, 8.3.43 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Save 4 5 -5 45 -5 Find the value of u v w if it is known that xy Z = 3 xy Z U V W 45 - 5 U V W =0 X y Z9:57 C Done mylab.pearson.com AA C Brandon Archer Question 9, 8.3.47 HW Score: 15%, 3 of 20 points O Points: 0 of 1 2x 2y 2z 8 7 6 Find the value of 8 7 6 if it is known that U V W = 8. u - 16 v - 14 w- 12 xy z 2x 2y 2z 6 =0 u - 16 v- 14 w- 129:57 C Done mylab.pearson.com AA C Brandon Archer Question 10, 8.3.51 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Save Solve for X. X X = 16 -2 6 x =]9:57 C Done mylab.pearson.com AA C Brandon Archer Question 11, 8.3.55 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Save Solve for X. X 4 2 3 X 0 = 48 4 6 x = (Use a comma to separate answers as needed.)9:57 C Done mylab.pearson.com AA C Brandon Archer Question 12, 8.3.7 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Save Find the value of the determinant. N 8 The value of the determinant is9:58 0 Done mylab.pearson.com AA C Brandon Archer Question 13, 8.3.11 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Sav Find the value of the determinant. The value of the determinant is9:58 mylab.pearson.com Question 18, 8.3.45 HW Score: 15%, 3 of 20 points Points: 0 of 1 Sav X y X V Z N Find the value of - 8 - 5 3 if it is known that u VW = 2. -2u -2v - 2w -8 -5 3 X y N - 8 -5 3 = - 2u - 2v -9:58 0 Done mylab.pearson.com AA C Brandon Archer Question 19, 8.3.49 HW Score: 15%, 3 of 20 points O Points: 0 of 1 Sa u - 12 v -4 w-2 XY Z Find the value of 6 2 1 if it is known that u V W = 8 3x 3y 3z 6 2 1 u - 12 v-4 w-2 6 2 1 3x 3y 3z