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3.2 x 104 bacteria are measured to be in a dirt sample that weighs 1 gram. Usescientific notation to express the number of bacteria that would be in a sampleweighing 21 grams.

Respuesta :

The number of bacteria that weighs 1 gram are,

[tex]3.2\times10^4[/tex]

Determine the number of bacteria in a sample that weighs 21 grams.

[tex]\begin{gathered} 21\cdot3.2\times10^4=67.2\times10^4 \\ =6.72\times10^5 \end{gathered}[/tex]

So answer is,

[tex]6.72\times10^5[/tex]

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