Round off 0.0012485 m correct up to 3 significant figures.
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3
Answer:
0.00125
O is not a significant figure in this case
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0
Answer: 0.00125
Step-by-step explanation:
0 is not the significant figure in this number.
We Round Off, Why?
- A number is simplified when it is rounded off, preserving its value while moving it closer to the next number.
- It is done for whole numbers as well as decimals at various places of hundreds, tens, tenths, etc.
- When numbers are rounded off, the important numbers are kept.
- Simply expressed, the number of significant figures in a result is the number of figures that are known with some degree of certainty.
Rounding Decimal Numbers: Guidelines
- When rounding decimal values, keep in mind the following rules:
- To locate the rounding digit, look at its right side.
- If the right-side numbers are less than 5, consider them to be equal to zero.
- If the values on the right are greater than or equals 5, then add one to it, and all other numbers are treated as zero.
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