What is the value of 13x^-3y^-1 for x=-1 and y=4 hel so stressed need this 13x^-3y^-1 for x=-1 and y=4 a) -13/4 b) -52 c) -4/13 d) -156

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

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