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 9.8 × 10^1 light-years from Earth. In scientific notation, approximately how many miles is it?

Question

anonymous · Answer

Actually 9.8 * 10^1 is already in scientific notation.

anonymous · Answer

which one is it?
5.88 × 1013 miles
5.76 × 1014 miles
5.88 × 1012 miles
9.8 × 1012 miles

anonymous · Answer

Oh, I didn't read the part saying IN MILES.

anonymous · Answer

:p

anonymous · Answer

Second option, though its not the exact answer.

anonymous · Answer

Exact answer: 5.7624 * 10^14

anonymous · Answer

thank you.