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Semmy [17]
3 years ago
6

Please helpp mecwith this question ​

Mathematics
1 answer:
andrew11 [14]3 years ago
8 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

\frac{1}{R}  =  \frac{1}{8}  +  \frac{1}{12}  \\

\frac{1}{R}  =  \frac{1 \times 3}{8 \times 3}  +  \frac{1 \times 2}{12 \times 2}  \\

\frac{1}{R}  =  \frac{3}{24}  +  \frac{2}{24}  \\

\frac{1}{R}  =  \frac{3 + 2}{24}  \\

\frac{1}{R}  =  \frac{5}{24}  \\

Inverse both sides

\frac{R}{1}  =  \frac{24}{5}  \\

R =  \frac{24 \times 2}{5 \times 2}  \\

R =  \frac{48}{10}  \\

R = 4.8 \:  \: Ω

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

The correct answer is (( B )) .

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