Which three length combinations below cannot be the side lengths of a triangle? A. 23 m, 17 m, 14 m
B. 11 m, 11 m, 12 m
C. 5 m, 7 m, 8 m
D. 21 m, 6 m, 10 m

Solve the system of equations. y= 2x y= x^2 - 15

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.