# How do you write 0.0000754 in scientific notation?

$7.54 \times {10}^{- 5}$
$7.54 \times {10}^{N}$ for some integer N. We can count the zeroes and find that there are 4 zeros past the decimal place. That means N = -5. We can check this by imagining moving the decimal place 5 to the right and getting 7.54, as we expect.
So the answer is $7.54 \times {10}^{- 5}$