1.4 * 105
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It is: 1.4*10^5
To convert 140000 into scientific notation, move the decimal point four places to the left, so the number becomes 1.4. Then, multiply it by 10 raised to the power of 5 (since the decimal was moved four places). So, 140000 in scientific notation is 1.4 x 10^5.
It is 8.9*10^-5 in scientific notation
It is "(scientific notation)".
This number in scientific notation is 9.8x10-5.