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13.09.2021 •
Physics
Express the answer in scientific notation:
5.0 x 10^-7mg + 4 x 10^-8mg
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Ответ:
4 * 10^-8 mg = .4 * 10^-7 mg divide and multiply by 10
5.0 x 10^-7mg + .4 x 10^-7 mg = 5.4 x 10^-7 mg
Also 5.4 x 10^-7 mg = 5.4E-7 mg
Ответ:
B.
Explanation: