Which expression represents the number 0.00017 written in scientific notation?

Scientific Notation for 0.00017

Scientific notation is a way of expressing numbers as a coefficient multiplied by 10 raised to a power. To convert the number 0.00017 to scientific notation, we need to move the decimal point until there is only one non-zero digit to its left. In this case, we move the decimal point 4 places to the right to obtain 1.7. Since we moved the decimal point to the right, the exponent on 10 is negative.

Therefore, the scientific notation for the number 0.00017 is 1.7 x 10^-4.