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For questions where we are multiplying decimals, let's first try to convert the decimals into forms that are easier to work with: non-decimals!
[tex]0.024 = 24 * 10^{-3}[/tex]
[tex]0.0043 = 43 * 10^{-4}[/tex]
Multiplying these two new sets together yields the following:
[tex]24 * 43 * 10^{-3} * 10^{-4}[/tex]
[tex]24 * 43 * 10^{-7}[/tex]
Let's ignore the [tex]10^{-7}[/tex] for now and just look at multiplying the other two numbers together:
[tex]24 * 43 = 1032[/tex]
Now we just need to multiply [tex]1032[/tex] by [tex]10^{-7}[/tex] -- to quickly multiply a number by [tex]10^{-N}[/tex], it's best to think about it as "I need to move the decimal from the front of the number to the left [tex]N[/tex] times"
So in this case, your final answer would be
[tex]1032 * 10^{-7} = 0.0001032[/tex]