express this number in scientific notation. 19 hundred - thousandths

Explanation:

Step1: Write the number in decimal form

19 hundred - thousandths is $\frac{19}{100000}=0.00019$.

Step2: Convert to scientific notation

For a number $a\times10^{n}$ in scientific - notation, where $1\leqslant|a|\lt10$ and $n$ is an integer. For $0.00019$, we move the decimal point 4 places to the right to get $a = 1.9$, and since we moved the decimal point 4 places to the right, $n=-4$. So the number in scientific notation is $1.9\times10^{-4}$.

Answer:

$1.9\times10^{-4}$