Explanation
how to write 7.421.000.000 in scientific notation
Step 1
completing the description
a)First move the decimal point places to the left to find than or equal to 1, it is
[tex]7421000000\rightarrow7421,we\text{ found the number "1"}[/tex]we moved 6 places to find the number 1
b)Then multiply the number you obtained(7421) by 10 using as exponent the number of places you moved the decimal, it is
[tex]\begin{gathered} 7421\cdot10^6 \\ \text{then} \\ 7.421.000.000\rightarrow7421\cdot10^6 \end{gathered}[/tex]