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Mathematics 20 Online
OpenStudy (anonymous):

What is the quotient written in scientific notation?

OpenStudy (anonymous):

OpenStudy (anonymous):

dang it don't

OpenStudy (anonymous):

\[\frac{10^{20}}{10^5}=10^{20-5}=10^{15}\] is a start

OpenStudy (anonymous):

and i bet you know already that \[\frac{3}{4}=.75\]right?

OpenStudy (anonymous):

7.5* 10^15 ??

OpenStudy (anonymous):

close but no

OpenStudy (anonymous):

Ok well my options are A. 7.5*10^3 B. 0.75*10^4 C. 7.5*10^14 7.5*^10^15

OpenStudy (anonymous):

it would be \[\large .75\times 10^{15}\]but that is not in scientific notation because \(.75<1\) so you have to rewrite as \[\large 7.5^?\] and the only hard part is figuring out what goes in the exponent

OpenStudy (anonymous):

https://join.me/152-891-758 come here and see

OpenStudy (anonymous):

turning \(.75\) to \(7.5\) is multiplying by 10, compensate by subtracting 1 in the exponent and getting \[\large 7.5\times 10^{14}\]

OpenStudy (anonymous):

Is C correct

OpenStudy (anonymous):

does it say \(7.5\times 10^{14}\) ?

OpenStudy (anonymous):

Yea

OpenStudy (anonymous):

k

OpenStudy (anonymous):

thanks

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