Answer :
To write [tex]$1,550,000,000 in scientific notation, we want to express it as a product of a number between 1 and 10, and a power of 10.
1. Start with the given number: 1,550,000,000.
2. Identify where the decimal point would be in the number: it's at the end of the number initially because it's a whole number (i.e., 1,550,000,000.0).
3. Move the decimal point to the left until there is only one non-zero digit to the left of it.
For 1,550,000,000, move the decimal point 9 places to the left:
- This gives us 1.55 (since the number becomes 1.55 when you move the decimal point 9 places to the left).
4. Count how many places you moved the decimal point: 9 places.
5. The scientific notation is written as:
\[
1.55 \times 10^9
\]
Therefore, the correct way to write $[/tex]1,550,000,000$ in scientific notation is [tex]\(1.55 \times 10^9\)[/tex].
1. Start with the given number: 1,550,000,000.
2. Identify where the decimal point would be in the number: it's at the end of the number initially because it's a whole number (i.e., 1,550,000,000.0).
3. Move the decimal point to the left until there is only one non-zero digit to the left of it.
For 1,550,000,000, move the decimal point 9 places to the left:
- This gives us 1.55 (since the number becomes 1.55 when you move the decimal point 9 places to the left).
4. Count how many places you moved the decimal point: 9 places.
5. The scientific notation is written as:
\[
1.55 \times 10^9
\]
Therefore, the correct way to write $[/tex]1,550,000,000$ in scientific notation is [tex]\(1.55 \times 10^9\)[/tex].
