Question

70,500 in scientific notation?

don't know how to get the answer.

Answer 1

`7.05 * 10^4`

Explanation:

Scientific notation means you rewrite your number as two factors, where the first one is a real number from the interval `[0,10)` and the second one is a ten to some power.

In your number, the real number is going to be 7.05 (you just need to put a decimal separator behind the first non-zero character of your number.)

The power of your ten is going to be the number of how many numbers you needed to "skip" while relocating the decimal separator.

`70,500 = 70,500 * 10^0`
`70,500 = 7,050 * 10^1`
`70,500 = 705 * 10^2`
`70,500 = 70.5 * 10^3`
`70,500 = 7.05 * 10^4`

Sometimes you may see the scientific notation like `7.05*10E4`, in which the E just means "to the power of".