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

Sagot :

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:

[tex]9\times10^7\div3\times10^3=3\times10^4[/tex]

Therefore, we must divide

[tex]7.2\times10^3\div5\times10^5[/tex]

Do the division:

[tex]\frac{7.2}{5}=1.44[/tex]

Now we do the division of the exponents

[tex]\frac{10^3}{10^5}=10^{3-5}=10^{-2}[/tex]

Now we put it all together:

[tex]7.2\times10^3\div5\times10^5=1.44\times10^{-2}[/tex]