How do you write $865*10^-7$ in standard notation?

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Answer 1 · 2018-01-30T02:07:21

British standard notation: $8.65xx10^-5$

Standard notation: $0.0000865$

If you mean scientific notation, which is standard form in Britain, the number would be:

$8.65xx10^-5$ .

The decimal was moved two places to the left, so the exponent is increased by $2$ , such that $2+(-7)=-5$ .

If you mean standard form in which the number is expanded so that there is no exponent, the number would be:

$0.0000865$

The exponent $-7$ means to expand the number by moving the decimal to the left $7$ places.

How do you write 865*10^-7865*10^-7 in standard notation?