A number such as this would not normally be expressed in scientific notation.
75,000,000 written in scientific notation would be 75 x 10^6. This could also be expressed as 75 x 10 to the sixth power, because you would move the decimal in 75 to the right six spaces.
It is 7.28*10^-7 in scientific notation
If you mean: 1,003,000 then it is 1.003*10^6 in scientific notation
It is: 1.39*104
A number such as this would not normally be expressed in scientific notation.
This number would be rounded to 600,000 and the expressed in scientific notation as: 6.0*105
It would not normally be expressed in scientific notation but it is: 7.417717*10^5
3.7*101 Normally a small number like this would not have to be expressed in scientific notation
It would not normally be expressed in scientific notation but if so: 4.003*10^0
It is: 8.345*10^0 (Although this is not a number that would usually be expressed in scientific notation.)
5*106.
Such a number would be rounded to 30,000,000,000 and then expressed in scientific notation as 3.0*1010
A large number like this would be rounded to 30,000,000,000 and then expressed in scientific notation as: 3.0*1010
0.00069 expressed in scientific notation would be 6.9 x 10^-4.
3.844 * 108
It would be 8.645 x 105