Show that points A(-2,11),B(-6,-3) and C (4,9) are the verticles of scalene triangle.

Need same math paper but the back now i hope your able to read it cleary i need with hw

Plzzz answer both questions and i will give you 100 points

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?