Wednesday
April 16, 2014

Search: Maths - Matrices

Number of results: 11,713

linear algebra
if: A and B are matrices and A^2 is similar to B^2 Is A guaranteed to be similar to B? ------- Matrix similarity means that the matrices are identical if one of the matrices is converted to another basis. If matrices C and D are similar: C = P^-1 * D * P where P converts from ...
Friday, July 20, 2007 at 2:19pm by mathstudent

Algebra
There is only one equation and it does not make sense to me. You have the sum of two 3x1 matrices on the left and the product of three 3x1 matrices on the right. Matrices do not multiply in the manner shown. Perhaps another teacher can figure it out.
Thursday, December 17, 2009 at 6:31am by drwls

Math
http://www.intmath.com/matrices-determinants/4-multiplying-matrices.php Remember length of row of first must equal number of rows of second
Thursday, January 26, 2012 at 9:54am by Damon

math
1. not sure 2. Don't remember but hte book says to do it with matrices. 3. My book says a vertex matrix is a matrix into which the coordinates of a polygon's matrices are placed. 4. Algebra 2 - Transformations with matrices
Thursday, January 1, 2009 at 9:23pm by Anonymous

a
What is the meaning of the 'underscore' _ ? Are these matrices ? Why, if they are different matrices, do they have the same name M ? To add/subtract same-size matrices simply add/subtract the corresponding elements.
Wednesday, December 16, 2009 at 8:10pm by Reiny

matrices
Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m n matrix, and that V is a p q matrix. In order for UV to make sense, what must be true of the dimensions of these matrices? Although matrix multiplication uses dot products, it is ...
Tuesday, April 13, 2010 at 11:13pm by Yadlay

MATHS----Matrix
Assuming (A'A) is invertible, then (A'A)-1 exists. A(A'A)-1A' By the property of inverse of product of matrices, (A'A)-1 =A-1 A'-1 Therefore C=A(A'A)-1A' =A(A-1 A'-1)A' =(A A-1) (A'-1A') = (I) (I) =I after application of associativity and the properties of inverse of matrices...
Wednesday, September 8, 2010 at 4:18am by MathMate

maths
x and y are two matrices x= {-2 0} and y {4 -1} {5 1} {3 7} evaluate x^2+y is the ans={8 -1} {18 8}
Friday, May 23, 2008 at 9:51am by chantel

Urgent please help! matrices
solve using matrices x+3y-3z=12 3x-y+4z=0 -x+2y-z=1
Wednesday, December 7, 2011 at 10:18pm by Anonymous

Matrices (math)
0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B) Solve for A and B using matrices
Thursday, May 2, 2013 at 8:32pm by Jess

Algebra
Did I answer these correct? 19.Given matrices A, B, and C are all 2x2, determine whether the equation is true for the given matrices. C(A+B)= CA + CB Answer- False 20.Matrix multiplication is not commutative. Answer-False 21.For matrices, A + B = B + A Answer-True
Tuesday, August 9, 2011 at 4:06pm by lizzie

maths (matrices)
find the value of a if the determinant of:(6 3) (4 a)is: a) 6 b) 3 c)0 d)12 And yes "a" is suppose to represent a number
Wednesday, March 12, 2008 at 11:12am by Keisha

Maths
Let A,B and C be matrices such that A=(1 2 3 1 2 3) , B=(1 2 2 4 2 3) and C=AB. What is the sum of all the elements (entries) of matrix C?
Tuesday, April 16, 2013 at 3:27am by OIan

maths (matrices)
Find the value of a in the determinant of {6 3] [4 a] is a)6 b)3 c) 0 d)-12 (have the answers just need to know the working to get it)
Wednesday, March 12, 2008 at 11:12am by Keisha

Linear algebra
find the inverse of the following matrices if they exist. [1 -2 3] [3 1 0] [-2 1 1] the following represent a 3 x 3 matrices
Monday, November 21, 2011 at 4:23am by ZUkii

maths
solve the following simultaneous equations using matrices 3x-6y=24 and -4x+5y=-23
Wednesday, January 2, 2008 at 3:03am by cecelia

math
step by step how do we find the value of x and y in this matrices by the law of matrices (3 2 4 0) (x y)=(7 12)
Tuesday, October 18, 2011 at 2:33pm by swendy

math
step by step how do we find the value of x and y in this matrices by the law of matrices (3 2 4 0) (x y)=(7 12)
Tuesday, October 18, 2011 at 2:34pm by swendy

Algebra II
Can a matrix have a two digit number? I have to add the matrices[3 4] +[2 7] [7 6] +[3 8] Sorry this is the only way I know haw to put matrices on the board.
Saturday, October 27, 2007 at 7:25pm by JaneLee

Mathematics
write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.
Tuesday, July 10, 2012 at 9:51am by INDIANA

Mathematics
write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.
Wednesday, July 11, 2012 at 9:44am by INDIANA

Mathematics
write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.
Thursday, July 12, 2012 at 10:07am by INDIANA

Mathematics
write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.
Monday, July 16, 2012 at 12:53pm by SAMARA

Mathematics
write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.
Friday, July 20, 2012 at 9:54am by Samara

Math: matrices
If A and B are both square n x n matrices, If AB = I, prove BA = I Presumably you have to do this without using the usual properties of the inverse of matrices. But we do need to use that if there exists a matrix B such that A B = I then the equation A X = 0 has the unique ...
Monday, December 4, 2006 at 5:25pm by mathstudent

Math
I have a few questions about T-Matrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7? Or do I power the powered matrices by .7? Or am I completely off ...
Wednesday, October 13, 2010 at 10:30pm by Lisa

Mathematics
Hard to write matrices in this format You will have to visualize the matrix brackets around the matrices . I also will have to write them vertically. 11 6 9 5 times x y = 6 7
Friday, July 20, 2012 at 9:54am by Reiny

Math (matrices)
No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A|0] [B|A] (that is a 4x4 matrix represented as 4 2x2 matrices) The answer is in the form: [A^-1|0 ] [C |...
Thursday, November 16, 2006 at 1:23pm by James

Algebra 2
Unless V and T are matrices of the same rank, V - T has no meaning. That would make d. the answer. It is hard to tell just what your matrices are because the numbers are not lined up properly. It looks to me like V is a 2 x 3 matrix and T is a 3 x 2 matrix. In other words, ...
Saturday, June 28, 2008 at 3:33am by drwls

maths
Those are supposed to be square 2 x 2 matrices in numerator and denominator of my previous answer. It is hard to get the type spacing right to align the top and bottom halves. The | | symbols denote the determinant of the matrix.
Wednesday, January 2, 2008 at 3:03am by drwls

Maths - Matrices
I'm having trouble with doing this matrix proof The question is "Given some matrix A has the property A*2=A^-1, show that determinant A = 1, i.e |A| = 1" I've tried for ages, but I can't seem to do it, this is what I got to A^2= A^-1 |A^2| = |A^-1| |A|^2 = 1/|A| Can someone ...
Sunday, March 29, 2009 at 2:48am by TP

Maths: Algebra Matrices Class 12th
matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0 Find the value of x Don't give me the direct answer. Please tell me how to go about this. Draw in your notebook and then solve
Monday, April 11, 2011 at 6:12am by Akash

math
Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m n matrix, and that V is a p q matrix. In order for UV to make sense, what must be true of the dimensions of these matrices? Although matrix multiplication uses dot products, it is ...
Thursday, April 15, 2010 at 10:57pm by yadlay

Math
Putting a "hat" over a letter, such as A in this case, sometimes designates that is an operator. Operators convert matrices or functions into other matrices, functions or constants. Physicists often use this operatore notation, but in your case there may be another meaning. ...
Saturday, June 20, 2009 at 9:31pm by drwls

math
You have AX=B with all matrices. X = A-1B So, if you know how to find inverses, you're home free. wolframalpha.com can do inverses, or solve matrix equations. Notationally, your matrices would be {{5,1,-4},{2,-3,-5},{7,2,-6}} {{x},{y},{z}} {{5},{2},{5}} at wolfram alpha, you ...
Wednesday, October 30, 2013 at 3:44pm by Steve

Math
Matrices are as follows reading left to right: X=MatrixForm{{0,1},{1,0}} Y=MatrixForm{{0,-i},{i,0}} Z=MatrixForm{{1,0},{0,-1}} H=MatrixForm 1/sqrt(2){{1,1},{1,-1}} S=MatrixForm{{1,0},{0,i}} T=MatrixForm{{1,0},{0,exp(i(pi)/4)}} v=MatrixForm{{alpha},{beta}} Show by computation ...
Tuesday, September 17, 2013 at 10:03am by Anon.

Maths: Algebra Matrices Class 12th
Your matrix notation does not distinguish rows from columns, which is critical in matrices. The best possible interpretation I get is: a11 a12 a13 a21 a22 a23 a31 a32 a33 multiplied by b1 b2 b3 to give c1 c2 c3 which is then multiplied by another d1 d2 d3 to give e=0 So ...
Monday, April 11, 2011 at 6:12am by MathMate

math
Use the tools for 3 x 3 matrix inversion shown here: http://www.analyzemath.com/matrices/inverse.html Enjoy
Saturday, December 6, 2008 at 7:05pm by drwls

maths (matrices)
If there is an "a" in your matrix (which does not look like a matrix, by the way), then there must be an "a" in the determinant. Is the "a" supposed to be a number? Are the last two numbers supposed to be lined up below the first two numbers?
Wednesday, March 12, 2008 at 11:12am by drwls

math
What does it mean to have two matrix variables written vertically inside parentheses? In other words, if A and B are matrices, what does this mean (imagine there is one set of parentheses spanning both rows): (A) (B) I'm trying to understand a least squares problem like this...
Wednesday, January 7, 2009 at 10:35am by sergei

maths
a matrix X has a+b rows and a+2 columns while the matrix Y has b+1 rows and a+3 columns. both matrices XY and YX exist. find a and b. can you say XY and YX sre of same type? are they equal?
Thursday, April 4, 2013 at 10:55am by edward

Matrices
Your matrix is not complete. The answer has been given in a different post. However, bear in mind that when you are given ALL the elements of A, B and C in a matrix equation of A + B = C, it is equivalent to being given m x n equations of the form Aij + Bij = Cij, where Aij, ...
Thursday, December 17, 2009 at 1:51pm by MathMate

Matrices
I assume these are the sizes of matrices. A is 4x3 meaning that there are 4 rows and 3 columns. *** *** *** *** B is 3x4 meaning that there are 3 rows and 4 columns #### #### #### A matrix product is meaningful (exists) if and only if the number of columns of the first matrix ...
Thursday, December 17, 2009 at 3:53pm by MathMate

Algebra II (Matrices)
My book doesn't solve it like a linear equation, they solve it by using inverse matrices. Solve the matrix equation: |4 -5||m|=|32| |1 2| |n|=|-5| A= |4 -5| |1 2| X= |m| |n| B= |32| |-5| Step 1. Find the inverse of the coefficient matrix. A^-1= 1/13|2 5| |-1 4| (I get confused...
Friday, February 29, 2008 at 2:28am by Jon

Hall
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=matrices
Wednesday, December 19, 2007 at 7:40pm by Ms. Sue

Algebra
You can multiply two matrices if, and only if, the number of columns in the first matrix equals the number of rows in the second matrix. Otherwise, the product of two matrices is undefined. The product matrix's dimensions are (rows of first matrix) (columns of the second ...
Wednesday, July 18, 2012 at 4:02pm by bobpursley

maths
Cramer's rule is well explained here: http://www.purplemath.com/modules/cramers.htm You will need to calculate the determinants of four 3x3 matrices. I assume you know how to do that. If not, it's high time to learn how.
Thursday, July 28, 2011 at 9:18am by drwls

math
http://www.sparknotes.com/math/algebra2/matrices/problems_2.html
Sunday, November 6, 2011 at 6:12am by Ms. Sue

Algebra 2
The formula you need is here: http://www.mathcentre.ac.uk/students.php/all_subjects/matrices/matrix_arithmetic/resources/56
Sunday, July 6, 2008 at 12:43pm by drwls

Hall
how do you do matrices
Wednesday, December 19, 2007 at 7:40pm by Tiarre

math
linear matrices? how to solve?
Thursday, May 7, 2009 at 7:20pm by me

Algebra 2 (again)
These are matrices. I get y=1
Monday, July 30, 2012 at 9:20pm by Steve

Math
There are 18 animals in the barnyard. There are 50 legs. How many cows and how many chickens are there in the barnyard? Technically, I wonder if a chicken is an animal. And are chickens and cows the ONLY "animals" in the barnyard. If we assume a chicken is an animal and that ...
Monday, November 27, 2006 at 4:44pm by Miranda

Maths - Matrices
The statement isn't true, you have to make additional assumptions. E.g. one could add the condition that all the matrix elements are real. Then |A|^3 =1 and you know that |A| must be a real number, so |A| must be 1. The condition that the matrix elements are real is sufficient...
Sunday, March 29, 2009 at 2:48am by Count Iblis

math
(3 2 4 0) (x y)=(7 12) find x and y in this matrices
Tuesday, October 18, 2011 at 11:43am by swendy

math
Solved problems on matrices
Sunday, November 6, 2011 at 6:12am by Dm

Alg 2
they were supposed to be matrices, sorry
Monday, July 30, 2012 at 9:10pm by True

matrices
find the sum or differnce [ -2 -1 7 ] [ -2 0 8 ] [0 -3 2 ] + [-9 5 -1 ]
Monday, August 26, 2013 at 10:55pm by skyler

Buisness Math (?)
No matrices posted.
Sunday, December 8, 2013 at 9:50am by PsyDAG

Math
The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was $5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom condominiums sold for...
Monday, November 2, 2009 at 5:16pm by please help(:

MATH!
The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was $5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom condominiums sold for...
Monday, November 2, 2009 at 6:59pm by hmmm...

MATH!
The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was $5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom condominiums sold for...
Monday, November 2, 2009 at 8:12pm by hmmm...

maths (matrices)
I misread this as a multiple choice question. It is actually a multiple (four-part) question. For each of your four choices of the determinant value, there is a value of a that will work. The determinant value for the matrix |6_3| |4_a| is 6a - 12. a) If the determinant D is 6...
Wednesday, March 12, 2008 at 11:12am by drwls

Gaussian Elimination/ Matrices
5,10,30
Sunday, April 19, 2009 at 7:08pm by jero

math
(B-C)^2=(C-B)^2, Where B and C are (n x n) in matrices.Is it true or false.
Friday, April 15, 2011 at 5:26am by Fakaapo. Suetusi

math
(B-C)^2=(C-B)^2 ,where B and C are (n x n) matrices.what is the answer, it is true or false
Monday, April 18, 2011 at 5:49am by Fakaapo

Discrete Mathematics
Just multiply the matrices a = (1)(-5)+(-2)(7) b = (1)(6)+(-2)(-8) c = (3)(-5)+(3)(7) d = (3)(6)+(3)(-8)
Tuesday, July 30, 2013 at 6:56am by Graham

math
matrices: A=[-5 4 -6 B=[-2 4 -5 9 -8 7 8 9 3 4 -3 9] 5 -2 2] AB=? please show the work if you can.
Monday, February 8, 2010 at 7:06pm by anonymous

math
matrices: A=[-5 4 -6 9 -8 7 4 -3 9] B=[-2 4 -5 8 9 3 5 -2 2] AB=? please show work if you can.
Monday, February 8, 2010 at 7:15pm by anonymous

math
how will you solve these equations using matrices x+y=1 and 3x-2y=4/3
Sunday, June 27, 2010 at 1:39am by sha

matrices
just operate on corresponding elements: sum: [-4 -1 15] [-9 2 1]
Monday, August 26, 2013 at 10:55pm by Steve

Math.
The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was $5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom condominiums sold for...
Monday, November 2, 2009 at 11:37am by please help(:

UET Peshawar
P[C.S]=270/500 P[Maths]=345/500 P[C.S ∩ Maths]=175/500 ( P[C.S U Maths] )' = ? ANS. ( P[C.S U Maths] )' = 1-P[C.S U Maths] =1-{P[C.S] + P[Maths] - P[C.S ∩ Maths]} =1-{270/500 + 345/500 -175/500 } =1-{440/500} =1-0.88 =0.12
Friday, June 3, 2011 at 2:53pm by Sheraz

math (matrices)
Find the values of x and y for which: [2y+5] [x-1] [y - 2] = [ 3x ] is true. a. (-1, -1) b. (-2, -4) c. (5, 1) d. (-1, 4) I got B...?
Sunday, May 24, 2009 at 3:43pm by sophie

math
Let P=(B-C), and Q=(C-B) We understand from the definition of subtraction of matrices that P=-Q, or p(i,j)=-q(i,j). Let P= |2 0| |3 1| and Q= |-2 0| |-3 -1| and compare P^2 and Q^2 to make your conclusion.
Friday, April 15, 2011 at 5:26am by MathMate

algebra 1
I can't write this horizontally, so visualize the matrices written across the page 4 -7 -6 5 * x u = -5 2
Monday, July 23, 2012 at 1:22pm by Reiny

Math
Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6
Wednesday, October 29, 2008 at 11:19pm by Amanda

I do not know what you mean
Are you doing something with matrices? Please say what that is besides some random numbers.
Thursday, January 7, 2010 at 8:15pm by Damon

Math
Make a complete re search project on maths is interconnected with other subject i.e. Maths Vs computer using art with maths.
Tuesday, June 5, 2012 at 4:01pm by Shivansh Tomar

algebra 2--matrices.
A grocer wants to m,ix three kinds of hard candy to sell for $2.40 per pound. He need 50 pounds of candy altogether. He mixes sour balls worth $3.50 per pound,butterballs worth $2.50 per pound, and starlight mints worth $1.75 per pound. He mixes twice as many butterball as ...
Sunday, February 21, 2010 at 4:25pm by Alyssa.

Linear Algebra
Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6
Wednesday, October 29, 2008 at 11:32pm by Amanda

Linear Algebra
Find the inverse of the matrices, if they exist. Use the algorithm introduced in this section. 1 2 -1 -4 -7 3 -2 -6 4
Sunday, October 2, 2011 at 12:45am by Allan

Linear Algebra
Find the inverse of the matrices if they exist. Use the algorithm introduced in this section. 1 2 -1 -4 -7 3 -2 -6 4
Wednesday, October 5, 2011 at 12:05pm by Allan

MathJ.C.
Solve the system using matrices 4x+2y=2 5x+8y=30
Tuesday, October 22, 2013 at 8:53pm by JaimeC.

algebra
7. A closed economy is described by the following simple IS-LM system: C = a + b(1 t)Y dR I = I G = G L = kY hR
Friday, December 2, 2011 at 1:00am by Matrices

Maths - Matrices
Matrix transformations- please help? let f be the linear transformation represented by the matrix M = (4 2) .......(0 -2) a) state what effect f has on areas and whether it changes orientation b) Find the matrix that represents the inverse of f c) Use the matrix you found in ...
Thursday, May 22, 2008 at 10:29am by Anonymous

Analytic Geometry
Solve each equation using augmented matrices. 2x+y-2z=7 x-2y-5z=-1 4x+y+z=-1
Wednesday, October 3, 2007 at 9:20pm by Anonymous

algrebra
I don't understand how you are multiplying your matrices, but I found the inverse of matrix "a" to be -3 1 -2 10 -2 7 4 -1 3 and I got ab to be equal to ba
Sunday, April 27, 2008 at 8:30am by Reiny

Calculus HELP!!
Except that indeed 8 - 6 - 2 = 0 I have no idea what you mean. Are x1 and x2 vectors multiplied by square matrices or what?
Monday, January 27, 2014 at 4:54pm by Damon

Maths B
Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
Thursday, May 24, 2012 at 5:49am by Anna

Maths B
Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
Thursday, May 24, 2012 at 9:02pm by Anna

math
Solve the following matrices.(sORRY I DONT KNOW HOW TO DO THE BRACKETS) B= 1, -4 -2, 1 3, 0 D= 0, 1 1, 0 G= -3, 1 4, 5 FIND: a) DG = b) GD = c) BG = d) DD = e) GG =
Sunday, November 30, 2008 at 8:49pm by heidi

maths letaracy,history,geography and life science
im going to grade 10 next year,and i want to be a psychologist and im going for maths letaracy and history feild im realy not good with maths and i just found out a few weeks ago that i need pure maths to do psychology.i dont know what to do now ,i also dont know the jobs ...
Saturday, October 26, 2013 at 8:02am by khanyisa maringa

maths
well the only thing about maths is that you get stuck on it which is so annoying well the way i know how to do maths is if your mum or dad has got a calculater then sneak into were they keep it an and use it for your homework or you could just get a nerd to do your maths now ...
Sunday, April 13, 2008 at 4:19pm by permicouas

maths
well the only thing about maths is that you get stuck on it which is so annoying well the way i know how to do maths is if your mum or dad has got a calculater then sneak into were they keep it an and use it for your homework or you could just get a nerd to do your maths now ...
Sunday, April 13, 2008 at 4:19pm by permicouas

science
even if you don't know #1, it's evident from the other questions that this is an exercise set involving matrices. #10: a=2 Now, what ideas do you have on the others?
Saturday, March 15, 2014 at 6:21am by Steve

math
Let A,B and C be matrices such that A=⎛⎝132213⎞⎠, B=(122423) and C=AB. What is the sum of all the elements (entries) of matrix C?
Tuesday, April 16, 2013 at 3:55am by ayan

math
solve system by matrices 2x+3y-z=-8 x-y-z=-2 -4x+3y+z=6
Tuesday, February 24, 2009 at 10:09pm by jessica

math
solve this system by matrices 2x+3y-z=-8 x-y-z=-2 -4x+3y+z=6
Tuesday, February 24, 2009 at 10:28pm by jessica

math
4x-y-3z=8 2x+2y-z=3 6x+y-3z=2 help me solve matrices
Wednesday, March 13, 2013 at 12:23pm by jenny

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