Homework Answers
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• Solve the following linear systems a) x1 + x2 + x4 = 0 x1 +...
• Solve the following linear systems a) x1 + x2 + x4 = 0 x1 + x2 + 2x3 = 0 x1 + x2 = 0
Consider the following all-integer linear program: Max x1+x2 s.t 4x1+6x2 <= 22 x1+5x2<= 15 2x1+x2<=9 x1,x2>=0...
Consider the following all-integer linear program: Max x1+x2 s.t 4x1+6x2 <= 22 x1+5x2<= 15 2x1+x2<=9 x1,x2>=0 integer Solve in Excel Solver and AMPL.
2. Solve the following linear systems of equations by writing the system as a matrix equation...
2. Solve the following linear systems of equations by writing the system as a matrix equation Ax = b and using the inverse of the matrix A. (You may use a calculator or computer software to find A-1. Or you can find A-1 by row-reduction.) 3x1 – 2x2 + 4x3 = 1 x1 + x2 – 2x3 = 3 2x1 + x2 + x3 = 8 321 – 2x2 + 4x3 = 10 X1 + x2 – 2x3 = 30...
Solve the following linear programming model graphically: maximize Z=3x1+6x2 subject to 3x1+2x2≤18 x1+x2≥5 x1≤4 x1, x2≥0
Solve the following linear programming model graphically: maximize Z=3x1+6x2 subject to 3x1+2x2≤18 x1+x2≥5 x1≤4 x1, x2≥0
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0 Q3. (Dual Simplex Method) (2...
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0
Consider the following linear program: Maximize Z-3xI+2x2-X3 Subject to:X1+X2+2 X3s 10 2x1-X2+X3 s20 3 X1+X2s15 X1, X2,...
Consider the following linear program: Maximize Z-3xI+2x2-X3 Subject to:X1+X2+2 X3s 10 2x1-X2+X3 s20 3 X1+X2s15 X1, X2, X320 (a) Convert the above constraints to equalities. (2 marks) (b) Set up the initial simplex tableau and solve. (9 marks)
Consider the following linear program: Maximize Z-3xI+2x2-X3 Subject to:X1+X2+2 X3s 10 2x1-X2+X3 s20 3 X1+X2s15 X1, X2, X320 (a) Convert the above constraints to equalities. (2 marks) (b) Set up the initial simplex tableau and solve. (9 marks)
Use the Gaussian Elimination Algorithm to solve the following linear systems, possible, and determine whether row...
Use the Gaussian Elimination Algorithm to solve the following linear systems, possible, and determine whether row interchanges are necessary. 3x – X2 – Xz + 2x4 = = -3.4x; – x2 – 2x3 + 2x4 = 1,x1 + x2 + x4 = 2, 0,2x1 + x2 – X3 + X4
Solving Systems of Linear Equations Using Linear Transformations In problems 1-5 find a basis for the...
Solving Systems of Linear Equations Using Linear Transformations In problems 1-5 find a basis for the solution set of the homogeneous linear systems. 2. X1 + x2 + x3 = 0 X1 – X2 – X3 = 0 3. x1 + 3x2 + x3 + x4 = 0 2xı – 2x2 + x3 + 2x4 = 0 x1 – 5x2 + x4 = 0 X1 + 2x2 – 2x3 + x4 = 0 X1 – 2x2 + 2x3 + x4...
Consider the following linear program min -10.01 - 3.02 x1 + x2 + x3 = 4...
Consider the following linear program min -10.01 - 3.02 x1 + x2 + x3 = 4 5x 1 + 2x2 + x4 = 11 Z2 + 5 = 4 21,22,23,24,25 > 0 (a) Starting from the basis B = {2,3,4}, solve the linear program using the simplex method. (b) Removing the slack variables, we have the equivalent formulation. min -10:31 - 322 21 +224 5.11 + 2.22 <11 1 x2 < 4 21,220 Plot the feasible region and mark the...
3. Solve the following system of homogeneous equations 2.x1 + x2 + 3x3 = 0 x₂...
3. Solve the following system of homogeneous equations 2.x1 + x2 + 3x3 = 0 x₂ + 2x2 x2 + x3
2. Solve the following linear systems of equations by writing the system as a matrix equation Ax = b and using the inverse of the matrix A. (You may use a calculator or computer software to find A-1. Or you can find A-1 by row-reduction.) 3x1 – 2x2 + 4x3 = 1 x1 + x2 – 2x3 = 3 2x1 + x2 + x3 = 8 321 – 2x2 + 4x3 = 10 X1 + x2 – 2x3 = 30...
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0
Consider the following linear program: Maximize Z-3xI+2x2-X3 Subject to:X1+X2+2 X3s 10 2x1-X2+X3 s20 3 X1+X2s15 X1, X2, X320 (a) Convert the above constraints to equalities. (2 marks) (b) Set up the initial simplex tableau and solve. (9 marks)
Consider the following linear program: Maximize Z-3xI+2x2-X3 Subject to:X1+X2+2 X3s 10 2x1-X2+X3 s20 3 X1+X2s15 X1, X2, X320 (a) Convert the above constraints to equalities. (2 marks) (b) Set up the initial simplex tableau and solve. (9 marks)
Use the Gaussian Elimination Algorithm to solve the following linear systems, possible, and determine whether row interchanges are necessary. 3x – X2 – Xz + 2x4 = = -3.4x; – x2 – 2x3 + 2x4 = 1,x1 + x2 + x4 = 2, 0,2x1 + x2 – X3 + X4
Solving Systems of Linear Equations Using Linear Transformations In problems 1-5 find a basis for the solution set of the homogeneous linear systems. 2. X1 + x2 + x3 = 0 X1 – X2 – X3 = 0 3. x1 + 3x2 + x3 + x4 = 0 2xı – 2x2 + x3 + 2x4 = 0 x1 – 5x2 + x4 = 0 X1 + 2x2 – 2x3 + x4 = 0 X1 – 2x2 + 2x3 + x4...
Consider the following linear program min -10.01 - 3.02 x1 + x2 + x3 = 4 5x 1 + 2x2 + x4 = 11 Z2 + 5 = 4 21,22,23,24,25 > 0 (a) Starting from the basis B = {2,3,4}, solve the linear program using the simplex method. (b) Removing the slack variables, we have the equivalent formulation. min -10:31 - 322 21 +224 5.11 + 2.22 <11 1 x2 < 4 21,220 Plot the feasible region and mark the...
3. Solve the following system of homogeneous equations 2.x1 + x2 + 3x3 = 0 x₂ + 2x2 x2 + x3
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