define significant figures and order of magnitude
Answers
Answer:
significant figure
noun:MATHEMATICS
plural noun: significant figures
each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first non-zero digit.
"this text will round numbers to three significant figures"
order of magnitude
noun
a class in a system of classification determined by size, typically in powers of ten.
"the forces between atoms on a polymer chain are about two orders of magnitude stronger than those between chains"
size or quantity.
"the new problems were of a different order of magnitude"
the arrangement of a number of items determined by their relative size.
"the items are arranged in ascending order of magnitude"
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Explanation:
order of magnitude refers to rough approximation. Significant figure describe something fairly precise