Please?

google?

google is your best friend. you'd probably need to post specific info if you want help

get a graphics calculator

i don't think ive seen anyone get answers past trig on here xd

We'll need specifics before anyone can help at all.
Or if you prefer, try http://www.wolframalpha.com/

Sometimes Khan Academy has useful math stuff, I'm not sure if it'll have what you're looking for though.

I feel like it's kind of odd that there have been this many math help threads...
http://teamfortress.tv/thread/7442/math-help
http://teamfortress.tv/thread/16357/math-help
http://teamfortress.tv/thread/2654/math-homework-help-please
http://teamfortress.tv/thread/8644/math-problem

https://www.youtube.com/user/patrickJMT you can try this

Well if you really want specifics,

I have two design matrixes Xa and Xb, which are

1 1 0
1 1 0
1 -1 2
1 -1 2

and

1 -1 1
1 -1 -1
1 1 1
1 1 -1

respectively. I need to find the linear models and OLS formulas for each, as well as the normal equations and hat matrix, leverage, and SSresidual.

There's other questions too, but if I get over this first hurdle I figure I can work through the rest.

Google has not remotely helped me, and 2c I know it's a long shot. Figured I wouldn't lose anything by trying.

Is there a response vector included?

No

In fact that's all the information given in the problem, but there are subproblems that give additional information like

"Let the dependent vector be Y' = (2, 1, 5, 3). Show calculations for the coefficient estimates."

and

"Suppose each value of Y is the average of 5 values with standard deviations of (2, 1, 1, 2) respectively. What are the OLS coefficient estimates, "pure error" SS and residual SS for Xb?"

We need an OFFICIAL homework help thread

0, 1.25, 0.75

8.5, 0.25

These are 100% correct and I absolutely did not fail linear algebra.