Consider two decisions A and B represented by two binary decision variables XA and Xb, each of which takes 1 if the decision is made to choose it, and 0 otherwise. Select an appropriate expression for the constraint in each question. 1 X + XB = 0 (5) XA + XB = 1 2 XA - XB = 0 © XA + XB < 1 3 XA +XB > 0 7 X + XB > 1 © XA - XB > 0 ® XA +XB = 2
(a) Both A and B should be always chosen.
(b) At least one of the decisions A and B should be chosen; and both can be chosen together.
(c) At least one of the decisions A and B should be chosen; and both should not be chosen together.
(d) Each of the decisions A and B can be chosen individually; and both should not be chosen together.
(e) B can be chosen when A is chosen; but A should be chosen when B is chosen.

1/5x+9 2/5y+7

step-by-step explanation:

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

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step-by-step explanation:

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change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock