In the diagram, DE ll BC and DF bisects angle BDE

HELP PLEASE​

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees