Ineed to solve the picture below, but it's really confusing me.

Which of the following represents the length of a diagonal of this trapezoid?

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

Ze trinomial x2 + bx – c has factors of (x + m)(x – n), where m, n, and b are positive. what is ze relationship between the values of m and n? explain how you got ze answer