When all n teams in a league play every other team twice, a total of N games are played, where Upper N equals n squared minus n. A soccer league has 6 teams and all teams play each other twice. How many games are played?

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529 and 531

step-by-step explanation:

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: