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PLEASE help! 4. Consider the following simplex tableau: y z s t up 0 11 1 0 7 0 0 55 10 0 0 0

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4. Consider the following simplex tableau: y z s t up 0 11 1 0 7 0 0 55 10 0 0 0 42 1 10 0 1 2 0 0 60 -6 -8 0 0 14 0 1 122 (a) [10 points] List the active and inactive variables in this tableau, and give their values. (b) [10 points] If we were to solve this problem using the simplex method, what would be the next pivot element? Justify your

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