Question

The restriction X₁₁, X₁₂, X₂₁, X₂₂≥0 in the model means

a) Each decision variable must be positive in the optimal solution.
b) Each decision variable must be nonnegative in the optimal solution.
c) X₁₁, X₁₂, X₂₁, X₂₂≥0
d) All of the above.
e) None of the above.

Answer 1

The restriction X₁₁, X₁₂, X₂₁, X₂₂≥0 means that each decision variable must be nonnegative in the optimal solution.

Step-by-step explanation:

The restriction X₁₁, X₁₂, X₂₁, X₂₂≥0 means that each decision variable must be nonnegative in the optimal solution.

Answer 2

The restriction X₁₁, X₁₂, X₂₁, X₂₂≥0 in the model means that each decision variable must be nonnegative in the optimal solution.

Step-by-step explanation:

The restriction X₁₁, X₁₂, X₂₁, X₂₂≥0 in the model means that each decision variable must be nonnegative in the optimal solution. This means that the values of X₁₁, X₁₂, X₂₁, and X₂₂ can be zero or positive.