Simplify
15x-3/ 5x² - 11x +2 + x-5/2x² - 11x +5

We just started the introduction into circles and i have no idea how to do this.

What rotation was applied to triangle def to create d’e’f’?

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4