Triangle acb is congruent to triangle dce. a = 50°. c = 45°. d = 10x. what does x equal?

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Pranza plotted point a in the coordinate plane below.