The last time the lower 48 states saw a total solar eclipse was 1979. how many years ago was that in scientific notation?

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asked Mar 28, 2018 9.4k views

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Tim Harding · Answer 1 · 2018-04-03T17:23:04+0000

The last time (before August 21, 2017) when the lower 48 states saw a total solar eclipse was 1979.

That was 2017 - 1979 = 38 years ago.

In scientific notation,
38 = 3.8 x 10¹

Answer: 3.8 x 10¹ years ago.

The last time the lower 48 states saw a total solar eclipse was 1979. how many years ago was that in scientific notation?

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