Question: In a triangle ABC, the angle bisector of angle B divides the side AC into segments AB = 6 cm and BC = 9 cm. What is the length of the angle bisector?
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Question: Determine the x-intercept of the logarithmic function f(x) = log(base 2)(3x) - 4.5.
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What is the number of ways to arrange 5 books on a shelf if 2 of them must be together?