Applying the Newton's version of Kepler's third law (or the orbital velocity formula) to the a star orbiting 40,000 light-years from the center of the Milky Way galaxy allows us to determine ______.a. the percentage of the galaxy's mass that is made of dark matterb. the mass of the black hole thought to reside in the center of the galaxyc. the mass of the Milky Way Galaxy that lies within 40,000 light-years of the galactic centerd. the total mass of the entire Milky Way Galaxy

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