Final answer:
When writing a small number (<1.0) in Scientific Notation, the power of the exponent is negative.
Step-by-step explanation:
In scientific notation, when writing a small number (<1.0), the power of the exponent is negative.
For example, if we want to write the number 0.000045 in scientific notation, we would first write the first nonzero digit (4), then a decimal point, and then the rest of the digits (5).
The coefficient would be 4.5. To determine the power of 10, we count the number of places we need to shift the decimal point to the right to get the original number (5 places), so the exponent would be -5. The number in scientific notation would be 4.5 x 10-5.