1003.09 into scientific notation?

Answer 1

1.00309 * 10^3

Move the decimal to the left until it is in front of the lead digit.
you will have moved it 3 digits. So 3 will be the exponent of 10.

Answer 2

so with scientific notation you only want one non-zero number to the right of the decimal place so here you would want 1.00309 * 10^3 (because 10^3 is a thousand or if you want to think about it another way we moved the decimal places three places to the left so 3)

Answer 3

1.00309 x 10^3

scientific notation is generally a number between 1-10 multiplied by 10 to the power of something.