I got 6.3 not sure if Im right
For E to be the midpoint of DF, it needs to divide DF in 2 equal segments, DE and EF. If E is the midpoint of DF, then DE and EF are equal, so the reason is that the expressions for DE and EF are equal. The reason is:
-8x^2+7x-10 should be the answer...if not go to connects it’s an app that helps and live people help you solve the problem
take a screenshot and then click the little paperclip to attach the picture.... that's what you're talking about right?