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What is a "significant digit"?

A. A zero in a number that is used as a placeholder.
B. A digit in a number that has an unknown value.
C. A digit in a number that has a measured value.

Sagot :

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Final answer:

Significant digits, also called significant figures, represent the precision of a measurement by indicating the meaningful digits in a number.


Explanation:

Significant digits, also known as significant figures, are all the numerals in a measured quantity whose values are considered as known exactly, plus one more that could be one more or one less. They represent the meaningful digits in a number and indicate the precision of a measurement. Nonzero digits are always significant, while zeros may serve as placeholders or be considered significant depending on their position in the number.


Learn more about Significant digits here:

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