Element X decays radioactively with a half life of 14 minutes. If there are 920 grams of Element X, how long, to
the nearest tenth of a minute, would it take the element to
decay to 10 grams?
y= a(.5)

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.