Question

how do you write 0.0090142 in scientific notation?

Explanation:

Step1: Move decimal point

Move the decimal point to the right until there is only one non - zero digit to the left of the decimal point. For 0.0090142, we move the decimal point 3 places to the right to get 9.0142.

Step2: Determine exponent of 10

Since we moved the decimal point 3 places to the right, the exponent of 10 is - 3. In scientific notation, a number less than 1 has a negative exponent for 10.

Answer:

$9.0142\times10^{- 3}$