Answer
$.0000000036$
Work Step by Step
We are given the number $3.6\times10^{-9}$. Since the exponent is negative, move the decimal 9 places to the left.
Note that 9 places to the left will be 8 decimal places past the first digit (3), so we will add 8 zeroes before 3.
$3.6\times10^{-9}=.0000000036$
