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anonymous
 one year ago
Can someone look at this and tell me what I did wrong to get this answer??? Will medal!
anonymous
 one year ago
Can someone look at this and tell me what I did wrong to get this answer??? Will medal!

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This took me so long to do I'm so upset... I was so proud of myself until I got that answer :(

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0why does the formula require the inverse? Wait I see what the problem is. You don't have to include x y z you just include the numbers that are attached to the x y z in the set of linear equation s

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0someone told me that the formula was A^1*B...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and when I looked it up that was correct, using the inverse

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1inverses are such a pain, when they get big its sometimes more efficient to use augmented form.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0I think something happened to your calculations.. your x is huge

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0that's what I was trying to say... put it in an augmented matrix format and use row operations...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't remember learning that I don't understand!

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1rref{ {1,1,1,4}, {4,5,0,3}, {0,1,3,10} } http://www.wolframalpha.com/input/?i=rref%7B+%7B1%2C1%2C1%2C4%7D%2C+%7B4%2C5%2C0%2C3%7D%2C+%7B0%2C1%2C3%2C10%7D+%7D

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1less room for error in my opinion

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0do you see the original system of equations? YOu just put the numbers from the systems of equations like this 1 1 1 l 4 4 5 0 l 3 0 1 3 l 10 and use row operations... you don't have a 0 in the main diagonal so row swapping isn't required.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just tell me what I did wrong so I can fix it and move on! I've been working on this problem for HOURS

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol math making people crazy when ever they can't find the answer ;D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't understand :'(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0nothing nothing they are going help :D

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1your inverse has one bad spot ... row1 col3: should be 5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I used a calculator to find the inverse.... it shouldn't be wrong..... but I'll double check

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0I would've used augmented version and use row operations..

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1it prolly had a negative, and you might have missed it ... but thats the trouble spot

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh... you're right @amistre64 I wrote it wrong...

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0I've made plenty of mistakes on my exams xD! It's not a problem. xD

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you so much... @amistre64 I'll calculate it now and look at my answer to see if its correct this time

amistre64
 one year ago
Best ResponseYou've already chosen the best response.150 instead of +50, so your 100 off on the first row :) 10098 = 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0haha thanks I'm not sure who to give the medal to... :P

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@amistre64 can you give @UsukiDoll a medal for me since I medaled you?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0interesting.. so there is more than one method to solve this... my professor didn't even teach the inverse version... just told me to put it in augmented matrix form and row operations solve away until I have reduce row echelon form. So the final matrix wouldv'e looked like this 1 0 0 l 2 0 1 0 l1 0 0 1 l 3 for x =2, y = 1, z=3
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