What is the 2nd term when -3f^3+9f+6f^4-2 f^2 is arranged in descending order

Working on itts i’m going to need you to me as i go along 1-5

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

What is the missing statement in step 4? ? rts ? ? vtu and ? rtu ? ? vts ? rts ? ? rvs and ? rtu ? ? stv ? vrs ? ? vru and ? usr ? ? usv ? vur ? ? vus and ? uvs ? ? sru