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Which order pair could be removed so that the set of order pairs is a function

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.