Identify the systems of equations that have a as their point of intersection.

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

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

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me