Use the simplex method to solve the linear programming problem. when x₁ = (Simplify your answers.) Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. The maximum is B. There is no maximum. Maximize z= 2x₁ + 9x2 subject to: 5x₁ + x₂ ≤40 9x₁ + 2x₂ ≤60 X₁ + X₂ ≤50 X₁, X₂ 20. and X2= with

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