What is the prefix, symbol, and meaning of the exponent 10 to the -1st power?

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Multiple Choice

What is the prefix, symbol, and meaning of the exponent 10 to the -1st power?

Explanation:
Exponent -1 corresponds to one tenth. In SI prefixes, deci means one tenth, with the symbol d. So 10^-1 is the deci prefix, written as d, and it means tenth. The other possibilities don’t fit: deca (the prefix for ten) would be ten, not one tenth, and its symbol is da. Using an uppercase D isn’t the standard symbol for deci. Milli represents one thousandth (10^-3), not one tenth, and its symbol is m.

Exponent -1 corresponds to one tenth. In SI prefixes, deci means one tenth, with the symbol d. So 10^-1 is the deci prefix, written as d, and it means tenth.

The other possibilities don’t fit: deca (the prefix for ten) would be ten, not one tenth, and its symbol is da. Using an uppercase D isn’t the standard symbol for deci. Milli represents one thousandth (10^-3), not one tenth, and its symbol is m.

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