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4 inches
4e-1 = 7 Multiply both sides by e: 4 = 7e Divide both sides by 7: 4/7 = e
4,000,000 in Scientific Notation = 4 x 10^6 or 4e+6
9E-05x
The notation "4e 21" on a calculator represents the number ( 4 \times 10^{21} ). The "e" stands for exponent, indicating that the number 4 should be multiplied by 10 raised to the power of 21. This is a shorthand way of expressing very large numbers in scientific notation. Thus, it equals 4 followed by 21 zeros.