History, 07.12.2020 19:20, fantasticratz2

Select all the correct answers. What is 221,000,000,000,000,000,000 expressed in scientific notation? 2.21 × 1021 2.21E20 2.21E21 2.21E-20 2.21 × 10-21 2.21 × 10-20 2.21 × 1020 2.21E-21

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Select all the correct answers. What is 221,000,000,000,000,000,000 expressed in scientific notation...