Question

5.1x10^-1 as an ordinary number

Answer 1

$Given \: standard \: form \:of \:a \: number \\5.1 \times 10^{-1}$

$Usual \: form \: of \: 5.1 \times 10^{-1}\\= 5.1 \times \frac{1}{10^{1}}$

$\boxed { \pink { Since, a^{-n} = \frac{1}{a^{n}} }}$

$= \frac{5.1}{10} \\= 0.51$

Therefore.,

$\red { Usual \: form \: of \: 5.1 \times 10^{-1}}\green { = 0.51 }$

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