Express 900.00 in scientific notation.

Answer

To express the number 900.00 in scientific notation, follow these steps:

### Step 1: Identify the significant figures
The number 900.00 has significant figures. The trailing zeros after the decimal point indicate that they are significant, meaning they contribute to the precision of the number.

### Step 2: Move the decimal point
To convert to scientific notation, we need to move the decimal point so that there is only one non-zero digit to the left of the decimal. For 900.00, we move the decimal point two places to the left, which gives us 9.0000.

### Step 3: Count the number of places moved
Since we moved the decimal point two places to the left, this will be represented as a power of 10.

### Step 4: Write in scientific notation
Now we can write the number in scientific notation. The number becomes:
\[ 9.0000 \times 10^2 \]

### Step 5: Simplify (if necessary)
In scientific notation, we can simplify it to:
\[ 9.00 \times 10^2 \]
This retains the significant figures.

### Final Answer
Thus, the scientific notation of 900.00 is:
\[ 9.00 \times 10^2 \]

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