How do you write $0.00000687$ in scientific notation?

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Answer 1 · 2016-02-26T15:49:23

$=6.87 xx 10^-6$

$0.00000687$

$=687/ 100000000$

$=687/ 10^8$

$=687 xx 10^-8$

$=6.87 xx 100 xx 10^-8$

$=6.87 xx 10^2 xx 10^-8$

$=6.87 xx 10^(-8+2)$

$=6.87 xx 10^-6$

How do you write 0.000006870.00000687 in scientific notation?