What is BC ? Enter your answer in the box. BC= units An isosceles triangle A B C. Side B C is the base. Sides A B and A C are equal. Sides A B and A C are labeled with single tick marks. Side A B is labeled as 4 x plus 1, side A C is labeled as 2 x plus 23, and side B C is labeled as 3 x minus 8.

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?