Write the following numbers using scientific notation:
`98000000000`

Answer

To write the number `98000000000` in scientific notation, follow these steps:

### Step 1: Identify the significant figures
The significant figures in the number `98000000000` are `9.8`.

### Step 2: Determine the exponent
Next, we need to determine how many places we move the decimal point to convert `9.8` into `98000000000`. The decimal point in `9.8` is initially after the `8`, and we need to move it to the right until it reaches the end of the number.

Counting the moves:
- From `9.8` to `98` (1 move)
- From `98` to `980` (2 moves)
- From `980` to `9800` (3 moves)
- From `9800` to `98000` (4 moves)
- From `98000` to `980000` (5 moves)
- From `980000` to `9800000` (6 moves)
- From `9800000` to `98000000` (7 moves)
- From `98000000` to `980000000` (8 moves)
- From `980000000` to `9800000000` (9 moves)
- From `9800000000` to `98000000000` (10 moves)

So, we moved the decimal point 10 places to the right.

### Step 3: Write in scientific notation
In scientific notation, we express the number as:
\[ 9.8 \times 10^{10} \]

### Final Answer
Thus, the number `98000000000` in scientific notation is:
\[ 9.8 \times 10^{10} \]

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