Question: In triangle ABC, the angle bisector of angle B divides side AC into segments AD and DC. If AD = 6x - 8 and DC = 4x + 10, find the value of x.
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Question: What is the sine value of an angle in the Trigonometric table if its cosine value is 0.5?
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What is the average score of a class consisting of 25 students, given that the mean score of 12 students is 75 and the mean score of the remaining 13 students is 85?