How do you express $0.000078$ in scientific form?

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Answer 1 · 2017-02-25T22:46:32

we need to move the decimal place $color(red)(5)$ places to the right therefore the 10s term will have a negative exponent:

$0.000078 = 7.8 xx 10^-5$

How do you express 0.0000780.000078 in scientific form?