Question

how do you write 42.3 in scientific notation? 4.23 × 10^1

Explanation:

Step1: Move decimal point

Move the decimal point in 42.3 one place to the left to get a number between 1 and 10, which is 4.23.

Step2: Determine exponent of 10

Since we moved the decimal point 1 place to the left, the exponent of 10 is 1.

Answer:

$4.23\times10^{1}$