Question

Evaluate the following quotient. Leave your answer in scientific notation.(7.2 x 103) = (5 x 10)AnswerХ

Answer 1

To do a quotient between two numbers in scientific notation we must do the usual division with the number, and subtract the exponents, for example:

`9*10^7/3*10^3=3*10^4`

Therefore, we must divide

`7.2*10^3/5*10^5`

Do the division:

`(7.2)/(5)=1.44`

Now we do the division of the exponents

`(10^3)/(10^5)=10^(3-5)=10^(-2)`

Now we put it all together:

`7.2*10^3/5*10^5=1.44*10^(-2)`