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Find the length of the arc on a circle of radius r intercepted by a central angle 9. (Round your answer to two decimal places.) Radius :- Central Angle 9 7 meters 120 :m Solve the exponential equation algebraically. Approximate the result to three decimal places. (Enter your answers as a comma-separated list.) 5X+8=42 Use the Law of Cosines to solve the triangle. Round your answers to two decimal places. A=51_. b=4, c=12 ill