Answer: [tex]7.63\times10^{-1}[/tex]Step-by-step explanation:The scientific notation is a technique to express a very large or a very small number in the product of a decimal form of number [commonly between 1 and 10] and powers of ten.
We know that one thousandth is written as :[tex]\text{One thousandth}=\frac{1}{1000}[/tex]Therefore, 763 thousandths can be written as :[tex]\text{ 763 thousandths}=\frac{763}{1000}=\frac{7.63}{10}[/tex]In Scientific notation:[tex]\frac{7.63}{100}=763\times10^{-1}......[\text{ By law of exponents }](\frac{1}{a^n}=a^{-n})[/tex]