: 1.0×10^−15/4.2×10^−7 Express the answer in scientific notation, □×10□, using two significant figures.?
回答 (2)
2017-11-28 10:52 pm
(1.0 × 10⁻¹⁵) / (4.2 × 10⁻⁷)
= 2.4 × 10⁻⁹
= 2.4 × 10⁻⁹
2017-11-28 10:20 pm
1.0×10^−15/4.2×10^−7 = 2.4x10^-9
just plug them into your calculator
just plug them into your calculator
收錄日期: 2021-04-18 17:58:05
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