chegg please find out how many numbers must be selected from the set 1, 2, 3, 4, 5, 6, 7, 8 to guarantee that at least one pair of those numbers add up to 9 ?
because if you use the quadratic formula and divide 2 by the power and you use the roman strategy it is guaranteed that you will get 4 & 5 Hope this helped :D hope you have a good day <3
