Let X₁ , X₂ , and X₃ Be 0 -

question 26

Multiple Choice

Let x₁ , x₂ , and x₃ be 0 - 1 variables whose values indicate whether the projects are not done (0) or are done (1) . Which answer below indicates that at least two of the projects must be done?

• A) x₁ + x₂ + x₃ ≥ 2
• B) x₁ + x₂ + x₃ ≤ 2
• C) x₁ + x₂ + x₃ = 2
• D) x₁ − x₂ = 0

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Definitions:

Materials Price Variance

The difference between the actual cost of materials used in production and the standard cost expected for those materials.

Raw Materials

These are the base ingredients or components that companies use in the production of goods.

Materials Price Variance

The difference between the actual cost of materials used in production and the standard cost of those materials.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the standard quantity expected, multiplied by the standard cost per unit of material.