Question

how do you write 0.000000031 in scientific notation? × 10

Explanation:

Step1: Move decimal point

Move the decimal point to get a number between 1 and 10. For 0.000000031, moving the decimal point 8 places to the right gives 3.1.

Step2: Determine exponent

Since we moved the decimal point 8 places to the right, the exponent of 10 is - 8.

Answer:

$3.1\times10^{-8}$