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igomit [66]
3 years ago
9

Write 0.0123 in dcientific notation

Mathematics
2 answers:
likoan [24]3 years ago
4 0

Answer:

scientific notation, the number to the left of the x must be between 1 and 10, so you have to move the decimal place until that happens - which in this case means moving it 2 digits to the right.


the x 10^ is standard, the only thing you need to change is the exponent. a negative exponent means you move the decimal to the left, and a positive exponent means to the right. you just count how many decimal places you have to move to get from 1.23 to .0123, and in which direction. here, you have to move it 2 places to the left, so you end up with 1.23 x 10^-2


feel free to report if it's wrong

Step-by-step explanation:


mixas84 [53]3 years ago
3 0
10x123^-2
----------------------
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\bf 0.444444444\overline{4}\impliedby \textit{and keeps on going}\\\\
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\textit{let's say }\boxed{x=0.444444444\overline{4}}\quad \textit{ thus }10\cdot x=4.44444444\overline{4}
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you can check in your calculator.

anyhow, to get the "recurring decimal to fraction", you start by setting to some variable, "x" in this case, then move the repeating part to the left of the point by multiplying it by some power of 10, and then do the equating.
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