Respuesta :
Answer:
If the population of the United States on July 4,2010 was almost 310000000 then, the number in scientific notation is [tex]$3.1 \times 10^{8}$[/tex].
Step-by-step explanation:
- Given
Population of the United States on July 4,2010 was almost 310000000 .
- To write the number in scientific notation.
- Firstly, move the decimal point so that the first factor is greater than or equal to 1 but less than 10 .
- Then, count the number of decimal places, n, that the decimal point was moved.
- Then, write the number as a product with a power of 10.
- Finally, check the scientific notation.
Step 1 of 2
Moving the decimal point-
Move the decimal after 3 . so that 3.10000000 is between 1 and 10 .
Now, we know the decimal point was moved 8 places to the left.
Step 2 of 2
Writing the number as a product with a power of 10 -
Since, 310000000 is greater than 1 so the power of 10 will have the exponent 8 .
Therefore, the number becomes-
[tex]$31000000=3.1 \times 10^{8}$[/tex]
Now, checking the scientific notation-
[tex]$\begin{gathered}3.1 \times 10^{8}=3.1 \times 100000000 \\=310000000\end{gathered}$[/tex]
