What is the sum of the matrices shown below?
[4 19 -5]+[-8 7 0]=
[7 0 -14] [-1 17 6]

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]