Answer:
[tex]2.3\times 10^{-2}[/tex]
Step-by-step explanation:
Given equation,
[tex]2.9\times 10^{-7}=\frac{(x)(x)^2(4.6)}{(4.6)^2(3)^2}[/tex]
[tex]2.9\times 10^{-7}=\frac{x^3}{9\times 4.6}[/tex]
[tex](\because a^m = \frac{1}{a^{-m}})[/tex]
By cross multiplication,
[tex]2.9\times 9\times 4.6\times 10^{-7}=x^3[/tex]
[tex]120.06\times 10^{-7}=x^3[/tex]
[tex]\implies x = (120.06\times 10^{-7})^\frac{1}{3}[/tex]
[tex]=0.0228980999294[/tex]
[tex]\approx 0.023[/tex]
[tex]=2.3\times 10^{-2}[/tex]