Answer :
To write 1,550,000,000 in scientific notation, you need to follow these steps:
1. Identify the Significant Digits: The number 1,550,000,000 has three significant digits: 1, 5, and 5.
2. Place the Decimal: To convert this number into scientific notation, you want a number between 1 and 10, so you'll place the decimal after the first significant digit. This gives you 1.55.
3. Count the Decimal Places: Count how many places you moved the decimal to get from 1,550,000,000 to 1.55. You moved it 9 places to the left.
4. Express as a Power of Ten: Since you moved the decimal 9 places to the left, you multiply by 10 raised to the power of 9.
So, the number 1,550,000,000 in scientific notation is written as [tex]\(1.55 \times 10^9\)[/tex].
Thus, the correct choice is:
[tex]\(1.55 \times 10^9\)[/tex].
1. Identify the Significant Digits: The number 1,550,000,000 has three significant digits: 1, 5, and 5.
2. Place the Decimal: To convert this number into scientific notation, you want a number between 1 and 10, so you'll place the decimal after the first significant digit. This gives you 1.55.
3. Count the Decimal Places: Count how many places you moved the decimal to get from 1,550,000,000 to 1.55. You moved it 9 places to the left.
4. Express as a Power of Ten: Since you moved the decimal 9 places to the left, you multiply by 10 raised to the power of 9.
So, the number 1,550,000,000 in scientific notation is written as [tex]\(1.55 \times 10^9\)[/tex].
Thus, the correct choice is:
[tex]\(1.55 \times 10^9\)[/tex].
