Question

What is 3.868x10^9 in standard form

Answer 1

$\bf \stackrel{\textit{scientific form}}{3.868\times 10^9}\implies \stackrel{\textit{standard form}}{3\underline{868000000.}}\qquad \leftarrow \begin{array}{llll} 10^9\textit{ means we move the }\\ \textit{dot 9 slots to the right} \end{array} \\\\\\ ~\hspace{10em}3868000000$

Answer 2

An easier way to do this would to be move the decimal spot 9 places to the right so that would be 3868000000 because u moved the decimal spot past the eight(1) past the 6 (2) past eight (3) and past 6 makes zeros to make it nine decimal spots