Mathematics: the amount of radioactive element remaining, r, in a 100-mg sample after d days is represented using the equation r=100[tex]( rac{1}{2})^ rac{d}{5} [/tex] . what is the daily percent of decrease? 87.06% 12.94% 3.13% 10%

the amount of radioactive element remaining, r,

Ответ:

dmc79765

12.03.2022

$\bf r=100\left( \frac{1}{2} \right)^{\frac{d}{5}}\\\\
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\textit{after 1 day how much remains?}\qquad \boxed{d=1}\qquad r=100\left( \frac{1}{2} \right)^{\frac{1}{5}}
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r=100\left( \cfrac{1^{\frac{1}{5}}}{2^{\frac{1}{5}}} \right)\implies r=100\left( \cfrac{1}{\sqrt[5]{2}} \right)\implies r\approx 87.06
\\\\\\
\textit{used to be 100mg, it went down in 1 day to 87.06 or }12.94$

how much is 12.94 in percent of 100? well, since is 100, is just 12.94%.

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Ответ:

sharondacarruth7853

25.10.2022

Mathematics

A*a*a*a*b*b simplifies into a^4*b^2 or $a^{4}$ $b^{2}$

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the amount of radioactive element remaining, r, in a 100-mg sample after d days is represented using the equation r=100 $( \frac{1}{2})^ \frac{d}{5}$ . what is the daily percent of decrease? 87.06% 12.94% 3.13% 10%

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﻿the amount of radioactive element remaining, r, in a 100-mg sample after d days is represented using the equation r=100 . what is the daily percent of decrease? 87.06% 12.94% 3.13% 10%

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the amount of radioactive element remaining, r, in a 100-mg sample after d days is represented using the equation r=100 $( \frac{1}{2})^ \frac{d}{5}$ . what is the daily percent of decrease? 87.06% 12.94% 3.13% 10%