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maks197457 [2]
3 years ago
15

The astronomical unit (AU) is the mean distance from the sun to the earth.

Mathematics
2 answers:
Mrac [35]3 years ago
7 0
By definition, we have to
 1 AU = 1.5 * 10 ^ 8Km
 a comet is 2.3 AU from the earth, which means that we must transform this unit to kilometers.
 2.3 AU = (2.3) * (1.5 * 10 ^ 8) = 3.45 * 10 ^ 8km
 answer
<span> 3.45 × 10,superscript,8,baseline, km
</span>
zvonat [6]3 years ago
3 0
<span>A. 3.45 x 10^8 km Since 1 AU is 1.5x10^8 and the comet is 2.3 AU away from Earth, the answer is a simple matter of multiplication. So: 1.5x10^8 km * 2.3 = 3.45x10^8 km Of the available options, option "A" matches exactly.</span>
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