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14. Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88x10 miles. Suppose a star is 2 23x 10 light- years from Earth. In scientific notation, approximately how many miles is it?

A)2.23X10^14
B)1.31X10^14
C)1.13X10^15
D)5.88X10^12

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5 answers
  1. Your information is incorrect:
    1 light-year = 5.879 x 10^12 miles or 9.461 x 10^14 km

    "Suppose a star is 2 23x 10 light- years from Earth"
    is there supposed to be a decimal in 2 23 ?
    is there an exponent 10^?

    once you have that fixed, multiply your (2 23x 10) by 5.879 x 10^12 miles

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  2. what was the answer..?

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  3. So much help that was

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  4. Oy vey

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  5. So it's D

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