19. Evaluate f(x) = -x² + 1 for x = -3. -4 -9 -8 4
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Answer:
13
Step-by-step explanation:
Since OCB forms a right triangle, you can find the length of side OB and therefore the radius by simply using the pythagorean theorem. The first step is to note that, since AB=24 and OC bisects that, that both CB and AC have length 12. Therefore, the radius is . Hope this helps!