What is the approximate degree measure of angle a in the triangle below?
а
1
37.9
38.9
51.1
52.1

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

mx+89b(-98)nb

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