Question

5.450×10-4 x 3.550×10-7 in scientific notation

Answer 1

`1.93475*10^(-10)`

Explanation:

To multiply the decimal numbers in scientific notation, multiply the decimals and add the powers of the 10.

`\sf 5.45 * 10^(-4)* 3.55*10^(-7)=5.45*3.55 * 10^((-4)+(-7))`

`\sf = 19.3475*10^(-11)`

Now, write the decimal 19.3475 in scientific notation.

As we have to move the decimal one count towards left, add 1 to the power.

`\sf = 1.93475*10^(-11+1)\\\\ = 1.93475*10^(-10)`