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How do you write $720$ in scientific notation? $\newline$ $\_\_\_\_\_\_ \times 10^{\_\_\_\_\_\_}$

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Scientific notation

Full solution

Q. How do you write

720

in scientific notation?

\newline

\_\_\_\_\_\_ \times 10^{\_\_\_\_\_\_}

Move Decimal Point: To write the number $720$ in scientific notation, we need to express it as a number between $1$ and $10$ multiplied by a power of $10$ . We can do this by moving the decimal point in $720$ two places to the left, which gives us $7.20$ .
Determine Power of $10$ : Now that we have the number $7.20$ , which is between $1$ and $10$ , we need to determine the power of $10$ that will give us back the original number when multiplied by $7.20$ . Since we moved the decimal point two places to the left, we need to multiply $7.20$ by $10$ raised to the power of $2$ to get back to the original number.
Write in Scientific Notation: Therefore, $720$ in scientific notation is written as $7.20 \times 10^2$ . This is because $7.20$ multiplied by $10^2$ (which is $100$ ) equals $720$ .

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