Question

roughly, it takes light less than 0.000000003 of a second to travel a one - meter distance. express this number in the form of a × 10ⁿ where 1 ≤ a < 10 and is a one - digit number. (1 point)
o 3 × 10⁻⁹
o 3 × 10⁹
o 3 × 10⁸
o 3 × 10⁻⁸

Explanation:

Step1: Identify scientific - notation rules

Scientific notation is of the form $a\times10^{n}$, where $1\leq a<10$.

Step2: Convert 0.000000003 to scientific - notation

Move the decimal point 9 places to the right to get a number between 1 and 10. So, $0.000000003 = 3\times10^{-9}$.

Answer:

There is no correct option among the given ones. The correct scientific - notation for 0.000000003 is $3\times10^{-9}$.