What is the discriminant of 3 x squared minus 10 x = negative 2? 76 94 106 124

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

What is the value for this expression? 2e-5

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?