Multiple choice questions

I just want to make sure they are correct. If I am wrong please explain why. Sensitivity analysis information in computer output is based on the assumption of no coefficient change one coefficient change two coefficient change all coefficients change I think the correct answer is one coefficient change Let M be the number of units to make and B be the number of units to buy. If if cost $2 to make a unit and $3 to buy a unit and 4000 units are needed, the objective function is Max 2M + 3B Min 4000 (M +B) Max 8000M + 12000B Min 2M + 3B I think the correct answer is Max 2M + 3B A transportation problem with 3 sources and 4 destination will have 7 terms in the objective... click for more

multiple choice questions

Find the complete optimal solution to this linear programming problem. Min 5X + 6Y s.t. 3X + Y >= 15 X + 2Y >= 12 3X + 2Y >= 24 X,Y >=0 x=3,y=3,z=48,s1=6,s2=0,s3=0 x=6,y=3,z=48,s1=6,s2=0,s3=0 x=3,y=6,z=48,s1=3,s2=0,s3=0 x=6,y=3,z=52,s1=6,s2=0,s3=0 I think the correct answer is x=3,y=6,z=48,s1=3,s2=0,s3=0 The optimal solution of the linear programming problem is at the intersection of constraints 1 and 2. Max 2x1 + x2 s.t. 4x1 + 1x2<=400 4x1 + 3x2 <= 600 1x1 + 2x2 <= 300 x1,x2 >=0 Compute the dual prices for the three constraints .45, .25, 0 .25, .25, 0 0, .25, .45 .45, .25, .25 I think the correct answer is ... click for more

Linear Programming

Max Z = 3x1 + 5x2 s.t. 7x1 + 12x2 <= 136 3x1 + 5x2 <= 36 x1, x2 >=0 and interger Find the optimal solution put your answer int he form of a solution for Z= enter xx only I came up with 1524. If I put it in the form of xx would it become 15? I'm not even sure if that is the correct answer. Please advise.

Least squares solution

Using the least squares method answer the following in a word doc. · What are the main strengths of this method? · What are its main shortcomings? · When would least squares be useful in the real world? · Does the use of linear algebra make this method easier to understand or use?

Current Electricity: Kirchhoff's Laws (ully explained)

(See attached file for full problem description) --- 2. Finding Unknowns Determine the unknowns in the circuit shown in Fig.3. How do electrical engineers use Kirchoff's current law and Kirchoff's voltage law to write a system of linear equations? • Based on your explanation, write a system of linear equations for Problem 2 at the top of this page. • Solve this system of linear equations for the unknowns. • Do these answers contain important information about the circuit? •What are the main strengths of this method? The main strengths of this method are: (1) It can be used to make predictions. (2) Since it is a linear model, it is easy to compute the dependent variable v... click for more