Question

patricia used a microscope to measure the diameter of a cell. she found that the diameter of the cell was 3.2×10^(-6) meters. how is this number written in standard form? 0.0000032 0.0000000032 0.000000032 0.000032

Explanation:

Step1: Recall scientific - to - standard conversion rule

For a number in scientific notation $a\times10^{-n}$ ($1\leqslant a<10$, $n$ is a positive integer), we move the decimal point $n$ places to the left.

Step2: Move the decimal point

For $3.2\times 10^{-6}$, since $n = 6$, we move the decimal point 6 places to the left. Starting with 3.2, we get 0.0000032.

Answer:

0.0000032