Question: #1.) A C **a.) In circle O, right triangle OBC is formed where mZB = 90. If OC = 13, BC = 12, determine

#1.) A C **a.) In circle O, right triangle OBC is formed where mZB = 90. If OC = 13, BC = 12, determine the length radius OB. b.) If mZBOA = (7x-3) and mBA = (4x + 9), find the value of x.

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