What is the greatest common factor of 56 and 42

Is the square root of 4 plus the square root of 16 rational?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Determine if the equation defines y as a function of x: 2xy = 1. yes o no