Question

QUESTION 20 In what parts of a linear programming formulation do the decision variables appear? In the objective function only In the RHS of constraints only In the LHS of constraints only Can appear in both RHS and LHS of constraints AND the objective function None are correct QUESTION 21 A constraint that directly affects the optimal solution in a linear program is called A non-binding constraint A null constraint A binding constraint None of the above QUESTION 22 Which constraint accurately reflects the following situation: Each unit of x1 requires 20 hours of labor to produce. Each unit of x2 requires 30 hours of labor to produce. There are a maximum of 1200 hours of labor 1,200x1,200x2 30 x20 30x1+20x2 1,200 20x1 +30x2 1,200 50(x1x2) 2 1,200 None are correct

Answer 1

Solution:

20)

Decision Variables are stated in the objective function and the left hand side of each constraint

constraints represents how the decision variables are resources which are available in limited quantity and objective function decides no of units to be produce to maximize the profit or minimize the cost.

For example z=2x+3y

3x+4y=400

where 400 is the limit of total material

Note:As per the HOMEWORKLIB RULES i answered only first question.so please re-post the other questions.