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Which number is not in scientific notation? Select one: a. 11 ⋅ 10^21 b. 5.7 ⋅ 10^9 c. 3.1 ⋅ 10^−12 d. 1.67 ⋅ 10^−5
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Which number is not in scientific notation? Select one: a. 11 ⋅ 10^21 b. 5.7 ⋅ 10^9 c. 3.1 ⋅ 10^−12 d. 1.67 ⋅ 10^−5

User Arkapravo
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a. 11x10^21
Scientific notation rules require that the coefficient number must be between 1 and 10 not inclusive of 10.
User Danielgpm
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