How do you calculate $(4.210^3) /( 3.510^5)$ ?

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Answer 1 · 2016-09-06T19:03:43

$1.2xx10^(-2)$

Write $4.2xx10^3" as "42xx10^2$

Write $3.5xx10^5" as "35xx10^4$

So now we have:

$(42-:35)xx(10^2-:10^4)$

$1.2xx10^(2-4)$

$1.2xx10^(-2)$

How do you calculate (4.2*10^3) /( 3.5*10^5) (4.2*10^3) /( 3.5*10^5)?