1. The congruency of MNO and XYZ can be proven using a reflection across the line bisecting . However, this congruency can also be proven using geometric postulates, theorems, and definitions. Prove that the triangles are congruent using a two-column proof and triangle congruency theorems. Given: M X
N Y

Prove: MNO XYZ

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.