If using the method of completing the square to solve the quadratic equation x^2 + 8x – 4 = 0, which number would have to be added to "complete the square"?

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

Abcd is a parallelogram find the valuse of x

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?