Jocelyn needs to study two stars for her astronomy research. She has narrowed her choices down to four stars that are located on a straight line from earth
https://snag.gy/u3wlfF.jpg
What is the distance between A and B ? Show or explain your work.
As in the last one...get the powers on 10 the same.......
.176 x 10^18 = 17.6 x 10^16 = A
22.13 x 10^16 = B
B - A = [22.13 - 17.6 ] x 10 ^16 = 4.53 x 10^16 km
Distance from Earth, to Star A: 0.176*10^18
Distance from Earth, to Star B: 22.13*10^16
So, 17.6*10^16 and 22.13*10^16. So, (22.13-17.6)*10^16= 4.53 *10^16 km.