product matrix
posted by Anonymous .
which product represents the solution to the system 3x+4y=2 and 2x+5y=6
[3 2]*[2
[4 5] [6]
1/7[3 2]*[2]
[4 5] [6]
[5 2]*[2]
[4 3] [6]
1/7[5 4]*[2]
[2 3] [6]
could someone explain

product matrix 
Reiny
your given system can be written in the following matrix form
[ 54]*[x]=[2]
[2 3] [y] [6]
the inverse of the first matrix is
1/17 of
[ 54]
[2 3]
if you multiply the left side by that inverse you get the identity matrix
[1 0]
[0 1]
of course you would then also multiply the right side by that , so it looks like the last answer is the correct one 
product matrix (getting careless) 
Reiny
oops!!
that first matrix of course should have been
[ 3 4]*[x]=[2]
[ 2 5] [y] [6]
I copied incorrectly from my paper
Respond to this Question
Similar Questions

Algebra 2(check pt 4)
1)Cramer's Rule is used to solve the system of equations:3m5n=12,4m+7n=5 Which determinant represents the numerator for n? 
math
Find the two numbers that multiply to the product number and add to the sum number of the following: a)Product 563033256; Sum 51895 b)Product 43481220; Sum 28429 c)Product 2545124358; Sum 105619 I tried xy = product and x+y = sum, … 
mathmatrix equations
I have a problem with the following homework question: Which product represents the solution to the system: y + 7x=14 x + 4y=1 a.  (1/27) (4/27)  (7/27) (1/27) b.  (7/3) (4/3)   (1/3) (1/3)  c.  (7/3) (4/3)   (1/3) … 
math
Find the entries of the following matrices: (a) the 2 ×2 matrix M for the reflection across the line y = x. (b) the 2 ×2 matrix N for the 90 degree counterclockwise rotation about the origin. (c) the product MN;what transformation … 
Algebra 2
Is it me or does this problem not make sense? 
Algebra
Need help with these 40. The graph of the following system yields perpendicular lines: x + 2y = 10 4y = 2x + 20 True or False? 
Calc
A video games shop is analyzing its sales performance using matrices. Matrix A contains the unit sales data for each product category (horizontally) per week (vertically). Matrix B contains the unit sales data for weekends for each … 
Algebra
Calculate elements the listed element for the product matrix. matrix[1, 2, 3_3, 4, 0_9, 7, 8_9, 3, 2]Xmatrix[11, 7, 9, 5_5, 9, 1, 6_4, 2, 3, 8] Can someone please help me with this. I'm desperate. 
Math Check
Hi! Can someone check this for me? My teacher wants me to write the system of equations that will correspond to the final matrix. I have the matrix already, but I need help with the writing the system stuff. Thanks! Matrix: [10 2 
meme
Consider the system of equations A ⊗ x = b where (i) A ∈ R m×n max , x ∈ R n max, b ∈ R m max and Rmax = R ∪ {−∞}, (ii) ⊗ denotes the maxplus matrix (or matrixvector) product based …