Express the following numbers in the standard form :
493.8721

Answer

To express the number 493.8721 in standard form, follow these steps:

### Step 1: Identify the number
We start with the number 493.8721.

### Step 2: Move the decimal point
In standard form, we need to have only one non-zero digit to the left of the decimal point. Therefore, we will move the decimal point two places to the left.

- Original number: 493.8721
- After moving the decimal point two places to the left: 4.938721

### Step 3: Count the places moved
We moved the decimal point 2 places to the left. This will be reflected in the power of 10.

### Step 4: Write in standard form
Now we can express the number in standard form as:
\[ 4.938721 \times 10^2 \]

### Final Answer
Thus, the number 493.8721 in standard form is:
\[ 4.938721 \times 10^2 \]

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