Scientists using the hubble space telescope have observed cepheids in the galaxy m 100. here are the actual data for three cepheids in m 100:
cepheid 1: luminosity = 3.9×1030 watts, brightness 9.3×10−19watt/m2
cepheid 2: luminosity = 1.2×1030 watts, brightness 3.8×10−19watt/m2
cepheid 3: luminosity = 2.5×1030 watts, brightness 8.7×10−19watt/m2
compute the distance to m 100 with data from each of the three cepheids.
express your answers using two significant figures. enter your answers numerically separated by commas.