How do you write 4,990 in scientific notation?

Answer 1

To write 4,990 in scientific notation, you need to express it as a number between 1 and 10 multiplied by a power of 10.

1. Move the decimal point in 4,990 to the left until you have a number between 1 and 10. In this case, moving the decimal point two places to the left gives you 4.990.

2. Count how many places you moved the decimal point. Here, you moved it 2 places.

3. Therefore, you can express 4,990 in scientific notation as:

\[ 4.990 \times 10^3 \]

So, the scientific notation for 4,990 is \(4.990 \times 10^3\).