Question

express in scientific notation

458,700

Answer 1

well, we keep one significant digit before the decimal, and multiply by an appropriate power of 10., depending on how many places we shift the decimal point.
here, 6 digits, and shifting the decimal 5 places to the left.
\[so,~ 458,700 = 4.587 \times 10^5\]

Answer 2

so scientific notation is \[x \times 10^{n}\] I believe. and we only want one decimal place so.