Question

ASAP QUESTION HELP

Solve 4m²n = 49 for m.
A. m=±7n√2n
B. m=±7n√2n
C. m=±7n√2
D. m=±7n√2

Answer 1

Given

`4m^2n = 49`

To solve for m, we make m the subject of the formula as follows:


`4m^2n = 49 \\ \\ m^2= (49)/(4n) \\ \\ m=\pm \sqrt{(49)/(4n)} =\pm (7)/(2 √(n) ) \\ \\ m=\pm(7)/(2 √(n) )* ( √(n) )/( √(n) ) \\ \\ m=\pm(7 √(n) )/(2n )`