9. a + 12 + 2a - 1
10. 8x - 3 + 8x + 3
11. 2x + 16 - 3x + 4
12. x + y - 2x-3y

∠aed is formed inside a circle by two intersecting chords. if minor arc bd = 70 and minor arc ac = 180, what is the measure of ∠ aed? a) 45° b) 50° c) 55° d) 60°

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Which function has an inverse function? a. f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²