It is a big number so the power will be positive.
There has to be just one non zero number in front of the point - that will be the 7
So it will be 7.5 x 10 to the +something
At the moment there is an invisable decimal point at the very end. You have to jump it over all the digits until you get it between 7 and 5. It will have to jump over 6 digits.
So the answer is
7.5 x 106
It is a big number so the power will be positive.
There has to be just one non zero number in front of the point - that will be the 7
So it will be 7.5 x 10 to the +something
At the moment there is an invisable decimal point at the very end. You have to jump it over all the digits until you get it between 7 and 5. It will have to jump over 6 digits.
So the answer is
7.5 x 106