What statement makes the open sentence 49 – 7x = 21 true? x = 11 x = 7 x = 4 x = 3

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points