Verify that parallelogram ABCD with vertices A(-5, -1), B(-9,6), C(-1, 5), D(3, -2) is a rhombus by showing that it is a parallelogram with perpendicular diagonal.

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Using the given statements, state whether the conditional statement is true or false. p: 2 + 2 = 4 q: 7 + 1 = 7 is p q true or false?

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.