Problem 7: (10 Pointo) citcle the correct ansver is the tollowing tive multiple

Question

Problem 7: (10 Pointo) citcle the correct ansver is the tollowing tive multiple cheice questiona 2) zE, and , sre binary variables where the value 1 signities accept" the project, theequation requiring the selection of only it s,is fiest seleeted is: 2) A product, it it i·nanufactured .. aii.-at b, s.. produced. hich of the foilowing constraints or 11 be reqai red r2 ly, where y-0 or 1 20. 20 3) If , andare binary variable"her. tha value ; the seleetien ot , it , s selected and vice versa 4) E x, and , are binary variables where the value i signities "acceps the project, the equation reqairing that if@)ia 8.legte4. then E cannot b· selected. L s) se , and , are binary variables where the value1 aignafies "accept the project, the oquation requiring that at least one of the pair, , and , will be selected ia

Explanation / Answer

1) d. xi >= x4

2) b. x <= Ly, where y = 0 or 1i x>= 0 , y >= 0

3) a. xi = x4

4) b. xi + x4 = 1

5) c. xi + x4 >= 1

The picture is very hazy, so the subscripts (i,4 etc) of variable xi, x4 are not clearly visible. However, the logic is correct.

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