Question

if the numbers is not in standard form . write it in standard form
.4* 10 ^3
0.7*10^-4
54.71*10^3

Answer 1

Dear Student,

$$\begin{gathered} \mathrm{In}\mathrm{standard}\mathrm{form},\mathrm{there}\mathrm{should}\mathrm{be}\mathrm{exactly}\mathrm{one}\mathrm{nnumber}\mathrm{from}\mathrm{decimal}. \\ 0.4\times {10}^3=\mathbf{4}\mathbf{.}\mathbf{0}\mathbf{}\mathbf{\times }\mathbf{}{\mathbf{10}}^{\mathbf{2}} \\ 0.7\times {10}^{-4}=\mathbf{7}\mathbf{.}\mathbf{0}\mathbf{}\mathbf{\times }\mathbf{}{\mathbf{10}}^{\mathbf{-}\mathbf{5}} \\ 54.71\times {10}^3=\mathbf{5}\mathbf{.}\mathbf{471}\mathbf{}\mathbf{\times }\mathbf{}{\mathbf{10}}^{\mathbf{4}}\mathbf{}\mathbf{.} \end{gathered}$$

Regards