Question

write the number 0.00022 in scientific notation. answer attempt 1 out of 2 answer: ×10 submit answer

Explanation:

Step1: Move decimal point

Move the decimal point in 0.00022 to the right until we get a number between 1 and 10. We get 2.2.

Step2: Determine exponent

We moved the decimal point 4 places to the right. For a number less than 1 in scientific - notation, the exponent of 10 is negative. So the exponent is - 4.

Answer:

$2.2\times10^{-4}$