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The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0