Who is the person that made the pythagorean theorem?

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2