A soil mass has kₓ=8*10¯⁷cm/s and kᵧ=4*10¯⁷cm/s. The effective permeability of the soil is ______

A soil mass has kₓ=8*10¯⁷cm/s and kᵧ=4*10¯⁷cm/s. The effecti

1.	A soil mass has kₓ=810¯⁷cm/s and kᵧ=410¯⁷cm/s. The effective permeability of the soil is ______
A.	4.6*10¯⁷cm/s
B.	6.6*10¯⁷cm/s
C.	5.6*10¯⁷cm/s
D.	7.6*10¯⁷cm/s
Answer» D. 7.6*10¯⁷cm/s