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elixir [45]
2 years ago
6

PLEASE HELP ASAP start off by restating: Historians know about the past before there were written records by studying artifacts

Mathematics
1 answer:
geniusboy [140]2 years ago
3 0
Both archaelogists and historians use sources and evidence to learn about the past. Archaeologists learn about the past by studying artefacts. Historians find out about the past by studying written sources (ie what people wrote). Written sources are stored in an archive.
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The complete question is :

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The coefficient in the expression 10x^{2} -7 is 10

<h3>What is Coefficient?</h3>

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

According to the question,

The expression given is 10x^{2} -7

The variable given is x

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Hence the coefficient in the expression is 10.

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