Question

express the length 125/10^23 km in scientific notation​

Answer 1

Answer:125*10^(-23)

Step-by-step explanation:when we take any exponent[power] from denominator to numerator its sign changes.Here it was positive we make it negative.

Answer 2

Answer:

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#Here's ur answer..☆☆☆

Step-by-step explanation:

$\boxed{ \huge{ \mathfrak{ \pink{answer...}}}}$

$\red{ \bold{given... \frac{125}{ {10}^{23} }km }} \\ = 125 \times {10}^{ - 23} km \\ = \frac{125}{100} \times 10 {}^{ - 23} \times 100km \\ \bold{ = 1.25 \times 10 {}^{ - 21} km} (\blue{answer...})$

$\bold{ \green{it \: is \: because \: in \: scientific \: notation}} \\ \bold{ \green{\: the \: decimal \: place \: is \: after \: one \: place..}}$

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