Math question: In triangle ABC, angle A measures 40 degrees. The angle bisector of angle A intersects side BC at point D. If BD = 8 cm, what is the length of DC?
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What is the probability of rolling a number less than 4 (βͺ) flipping heads on a fair coin?
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What is the equation of an ellipse centered at (h, k) with a major axis length of 2a and a minor axis length of 2b?