I'm trying to work ahead in Tech Math, and this is the only place I can find help outside of school, witch is great by the way. So I was going to just keep one thread, and add questions as I go if that's ok.

So here's the one I'm working on right now.

$\displaystyle C=\frac{F(R-r)}{Zt}$ Solve for Zt, F, R, & r

Can someone check these for me? I'm thinking the only one I got right was Solving Zt

Here's what I got for Zt

$\displaystyle Zt=\frac{(\frac{F}{R})+r}{C}$

Solve for "F"

$\displaystyle F=\frac{Zt(R-r)}{C}$

Solve for "R"

$\displaystyle R=\frac{FZt+r}{C}$

Solve for "r"

$\displaystyle r=\frac{ZtFR}{C}$

If someone could check this too that would be great.

$\displaystyle gm={(Go-G)(1+n)}$ Solve for Go

I got $\displaystyle Go=\frac{(1+n)+G}{gm}$

If I'm not using the forum right I'm sorry, if not could someone tell me.