Maximize z = 6xI + 2X2 + 4x3, using the "Simplex Method" the entering variable will be X3. False O True If S1, S2, & S3 have respective ratios of 1.5, 1, & 3, the leaving variable using the "Simplex Method" will be S2. False True If the reduced costs of all the empty cells in the transportation problem are either negative or zero, the solution is then optimal. True O False A "destination" represents the location to which commodities are distributed or delivered. * False True Z - 1400 - 3D1 + D2 this suggests that a unit change in the capacity of the first constraint (D1 = +1 min) increases the value of z by $3. True False