Ok, maths is not my strongest point... so I need your help...
Topic is hydrogeology, I need to rearrange this to isolate K.
Hx^2=h1^2 - x/L (h1^2- h2^2) + Nx/K (L-x)
Please explain your workings, as I need to understand this...
Help!!
Ok, maths is not my strongest point... so I need your help...
Topic is hydrogeology, I need to rearrange this to isolate K.
Hx^2=h1^2 - x/L (h1^2- h2^2) + Nx/K (L-x)
Please explain your workings, as I need to understand this...
Help!!
$\displaystyle Hx^2={h1}^2 - \frac{x}{L ({h1}^2- {h2}^2)} + \frac{Nx}{K(L-x)}$
$\displaystyle Hx^2(L-x)={h1}^2(L-x)-\frac{x(L-x)}{L ({h1}^2- {h2}^2)}+\frac{Nx}{K}$
$\displaystyle \frac{Hx^2(L-x)}{Nx}=\frac{{h1}^2}{Nx}-\frac{x}{L ({h1}^2- {h2}^2)Nx}+\frac{1}{K}$
$\displaystyle \frac{Hx^2(L-x)}{Nx}-\frac{{h1}^2}{Nx}+\frac{x}{L ({h1}^2- {h2}^2)Nx}=\frac{1}{K}$
$\displaystyle K=\frac{1}{\frac{Hx^2(L-x)}{Nx}-\frac{{h1}^2}{Nx}+\frac{x}{L ({h1}^2- {h2}^2)Nx}}$
Zarathustra - thanks for the help
appologies for the basic maths help here, but I need to fully understand this:
so you:
multiplied by (L-x) to isolate k
divided by Nx to give 1/k
thisis where I get a bit confused
subtracted Hx^2(L-x) / Nx to isolate 1/k
divide by 1 to give k = .......
I have got values for h1, h2, L x and N. I will plug them in and see what I get.
Thanks again for the help.