Answer
$-7.51\times10^{-12}$
Work Step by Step
Step 1: Scientific Notation includes only one non-zero digit in front of the decimal point.
Step 2: For $-0.00000000000751$, the decimal point must be moved 12 times to the right in order to ensure that their is only one non-zero digit in front of the decimal point.
Step 3: Therefore, $-0.00000000000751=-7.51\times10^{-12}$.
