Someone smart please help and get it right offering 100 points

asked Feb 18, 2023 204k views

4 votes

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11 votes

Answer:

2.8

Explanation:

By the angle bisector theorem,
(AC)/(AB)=(CD)/(DB). Plugging in the values from the diagram gives:

(5.8)/(5.5)=(3)/(?).

Solving gives

$?=(3\cdot 5.5)/5.8\\\approx 2.8$

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