How do you solve this: Чx - 15 : 7х + 21

Write the slope intercept equation for line ab.

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.

What is the measure of ac? enter your answer in the box. (4x - 5.5) (5x+25)