Using Stewart’s Theorem, prove the following useful fact about an angle bisector of a triangle. (I call it the second half of the Angle Bisector Theorem.) In the Trinagle ABC , if AD bisects Angle BAC , then prove that : : : : :d^{2} = bc - mn

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

What percent of the circle below is shaded?

If you could answer these your a life saver