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anonymous
 one year ago
HELP!
lol
anonymous
 one year ago
HELP! lol

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Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.0you can solve it by using carmer's rule

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1We have the 3 equations. Subtract eq 3 from eq 2 and solve for y. After you get y plug it into eq 1 and you will get an equation in x and z. Now solve that equation and eq 3 and you will find x and z. (Simultaneous equations)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i need to solve using matrixes x.x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i mean substitution and elimination are easy methods but matrixes are confusing :(

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1Do you know about Gauss' elimination?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if its related to matrixes maybe

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1Gaussian elimination is to do with matrices

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1From Google: You can perform three operations on matrices in order to eliminate variables in a system of linear equations: You can multiply any row by a constant (other than zero). multiplies row three by –2 to give you a new row three. You can switch any two rows. swaps rows one and two. You can add two rows together.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x.x thats different I'm solving for x and y and z using matrixes not finding the discriminant

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1http://www.dummies.com/howto/content/howtousegaussianeliminationtosolvesystemso.html Have a quick look into this and see if this is what you want or not.

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1I'm sorry my friend, Gaussian elimination is the way that's coming to my mind in order to solve the system of equations using matrices. It's a very powerful technique and I would highly recommend you to go through this video on Khan Academy: https://www.khanacademy.org/math/precalculus/precalcmatrices/matrixequations/v/matrixequationssystems

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0:C i don't get it I'm doomed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait in my book it tells me to use a graphing calculator

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do i even type this into a graphing calculator

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1I'll be honest with you. It's a shame, I know, but I never used a graphing calculator. I always tried to graph by hand and used a simple fx calculator in order to go about. I found this article, I do not know whether it will be of any help. But you might want to go through it: http://mathbits.com/MathBits/TISection/Algebra1/systems.htm

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1Sorry, couldn't be of any help.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its okie have a meal fur effort xD

anikhalder
 one year ago
Best ResponseYou've already chosen the best response.1I really appreciate it. Thank you. But it's really important that you know how to tackle these questions than me getting a medal. And I'd suggest once again, when you get time, go through Gaussian elimination. :)))
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