Respuesta :
The statement in which problem rounded to the correct number of significant figures is "13.57."
What are significant figures?
In numerical notation, significant figures are digits in a number that are dependable and necessary to express the quantity of something. It denotes the upper and lower bounds of what values of a measurement or calculation we may be certain of. Use the following three rules to determine the number of significant figures in a number:
- The presence of non-zero numbers is usually noteworthy.
- Between two significant digits, any zeros are substantial.
- Only the decimal portion's last zero or trailing zeros are significant.
Now,
12.7 + 0.8
= 13.57
It has 4 significant figures and 2 decimals.
Hence the correct option is C.
Learn more about significant figures here
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