Question

a skin cell is between 0.00003 and 0.00004 meter thick. how do you write 0.00003 in scientific notation? if we start with 3 and shift it to the right 5 times to get 0.00003, should we represent this as 3×10^5 or 3×10^(-5)? 0.00003 = 3×10^? 3×10^5 3×10^(-5)

Explanation:

Step1: Recall scientific - notation rule

Scientific notation is of the form $a\times10^{n}$, where $1\leqslant|a|\lt10$ and $n$ is an integer.

Step2: Determine $a$ and $n$ for 0.00003

For the number 0.00003, we move the decimal point 5 places to the right to get a number between 1 and 10, which is 3. Since we moved the decimal point 5 places to the right, $n=- 5$. So, $0.00003 = 3\times10^{-5}$.

Answer:

$3\times10^{-5}$