Here's the question you clicked on:
momoluvgd
Which number is not in scientific notation?
3.2 * 10^-2 15 * 10^20 8 * 10^13 1.42 * 10^-9
2, 3, 4 ,5 , 1000 is not in scientific notation are: \[number* 10^{number}\] \[10^{3}=1000 \]
is more common \[2*E^{-5}\]
Remember a scietific notation is this: a # more than 1 less than 9 times 10 with the exponent of how ever many decimal points you skipped. In this case, the answer is b.