One side of a triangle is 50 and the other side is 120 what is the length of the third side? this is exterior angle theorem.

What number must you add to complete the square x^2+12x=16

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?