The boundary of a lamina consists of the semicircles y = √√16-² and y = √√49-² together with the portic of the x-axis that join them. Find the center of mass of the lamina if the density at any point is inverse proportional to its distance from the origin. Enter the x- and y-coordinates of the center of mass (in that order) into the answer box below, separated with comma.

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A: see the image attached below

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