add or subtract the following measurements. be sure each answer you enter contains the correct number of significant digits. −4.

Question

2 years ago

13

520g1.3g

1 answer:

OLga [1] · Answer 1 · 2023-08-23T04:19:54+03:00

the correct number of significant digits

addition= -3.220g = 4 significant digits.

subtract= -5.820g = 4 significant digits

<h3>How are significant digits determined?</h3>

Use the following three rules to determine how many significant figures are present in a number:
Digits that are not zero are always important. Any zeros in the range of two significant digits are noteworthy.
ONLY in the decimal section are a final zero or following zeros important.

<h3>What are examples of significant digits?</h3>

Any two non-zero digits that are separated by a zero are important. For instance, the number 108.0097 has seven significant digits.
Every zero that is both to the right and left of a non-zero digit and the decimal point is never meaningful.
For instance, the number 0.00798 had three significant digits.

learn more about significant digits here

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