Solve the system of linear equations. −x+2y=7 x−2y=7
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It takes 1.7 x 10 ^4 for light from the sun to reach the comet.
<h3>How do scientific notations work?</h3>The number is written in the form where we have
Scientific notations have some of the profits as:
Better readability due to compact representation
Its value in terms of the power of 10 is known, which helps in the easy comparison of quantities differing by a large value.
A comet is about km from the sun.
Light travels at about km per second.
=
Hence, It takes 1.7 x 10 ^4 for light from the sun to reach the comet.
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