How do you express $5times10^-4$ in standard notation?

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Answer 1 · 2016-12-18T15:07:27

$5 xx 10^-4 = 0.0005$

The negative exponent means you must move the decimal point 4 positions to the left.

$5$ can also be written as $5.0$ to show the decimal point.

To move it 4 positions to the left gives: $0.0005$

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