leozap1
  • leozap1
Medal & fan for first to help Check my work please (Asap) The question is Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88 * 10^12 miles. Suppose a star is 1.23 * 10^2 light-years from Earth. In scientific notation, approximately how many miles is it? Ok so what I did is I took the number of miles and put it into standard notation and got 58,800,000,000 miles. Then I took the number of number of light years the star is away from earth and put it into scientific notation and got 123 light years
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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leozap1
  • leozap1
Continued... Then I multiplied them together and got 7,232,400,000,000 then I rounded it and put it into scientific notation and got 7.23 * 10^12 So is that all right? If not please tell me what I messed up and what I need to do
lncognlto
  • lncognlto
Yep, that looks correct to me. :)
missMob
  • missMob
yea me too

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missMob
  • missMob
i did the calculation on my calculator i think its right
missMob
  • missMob
good work
leozap1
  • leozap1
Thanks guys
leozap1
  • leozap1
Wait now I have a problem its not one of the choices on my quiz... There is a. 12.3 * 10^12 b. 7.23 * 10^13 c. 7.23 * 10^14 d. 5.88 * 10^12
leozap1
  • leozap1
What did I do wrong?
lncognlto
  • lncognlto
58,800,000,000 miles is the miles in one light year, right?
lncognlto
  • lncognlto
@missMob
leozap1
  • leozap1
That is what I got

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