Question

12/x=√4/169 then x=
​

Answer 1

see the attachment

hope this would help you

Answer 2

Answer:

$\frac{12}{x} = \sqrt{ \frac{4}{169} } \\ \\ \frac{12}{x} = \sqrt{ \frac{2 \times 2}{13 \times 13} } \\ \\ \frac{12}{x} = \frac{2}{13} \\ \\ 2x = 13 \times 12 \\ \\ x = \frac{13 \times 12}{2} \\ \\ x = 13 \times 6 \\ \\ x = 78$