Question

the length of a bacterial cell is 3.2×10⁻⁵ m. express the length of the cell in standard form.
the length of the cell is m.

Explanation:

Step1: Recall negative - exponent rule

When we have a number in scientific notation $a\times10^{-n}$ ($a$ is a number between 1 and 10, and $n$ is a positive integer), we move the decimal point $n$ places to the left. Here $a = 3.2$ and $n=5$.

Step2: Move the decimal point

Starting with 3.2, moving the decimal point 5 places to the left gives 0.000032.

Answer:

0.000032