Algebra Help

[Osmosis]

Oh, how I love the TI83. And oh how i hate how we were not allowed to use them in precal and half of cal...

Edit: We just started with limits and derivitives last week. The basic formula for figuring crap out is...

Not to incredibly hard, just really tedious if you have a problem with a lot of foiling. Like the other day we had one with 34 "parts" (for lack of a better word) once it was expanded all the way thru foiling. Annoing trying to go back and find something if you messed up.

That's first principles, good to learn, but useless once you get into the proper rules (chain rule etc...).


Ok;

This one is using an easy formula for physics

I look into a stream of water (n=1.33) and think it looks about 1.2m deep. How deep is it really?

 

[hitmanchimp6]

Edit: oh damn he beat me to it haha.

Anywhom... guna find mine hitman? lol.

im a sophomore. that looks like college stuff. or i just havent studied it yet

Well I don't need much help in math , I am best at math, but if I may this is very simple: Write an equation of a line perpendicular to y=4/5x + 7. I made that one up as I went along so I don;t know the solution yet but I will do it in my head after I post this.

Im pretty sure its y=5/4x+7

so are you looking for vouches for this??? or are you just bored and a math geek and want to help people??

no, im not even an A student in math, although im close. I just like to help people.