Sign In
Ask Question
Mathematics
Kolton Shah
13 November, 05:58
Solve using matrices. Show your work.
x+y=5
2x-y=1
+1
Answers (
1
)
Omar Douglas
13 November, 09:00
0
To solve using matrices, we want to get an identity matrix in the variable columns and see what we get on the far right columns
The coefficients for the problem in matrix form:
1 1 5
2 - 1 1
Add - 2 (row 1) to row 2:
1 1 5
0 - 3 - 9
Add (1/3) row 2 to row 1
1 0 2
0 - 3 - 9
Divide Row 2 by - 3
1 0 2
0 1 3
We now have an identity matrix inf the first two columns. Row 1 gives us the value of x, and row 2 gives us the value of y:
x = 2, y = 3
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“Solve using matrices. Show your work. x+y=5 2x-y=1 ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
If A is uniformly distributed over [-12,16], what is the probability that the roots of the equation x^2+Ax+A+3=0 are both real?
Answers (1)
Ron Finley is a gardener who decided a few years ago to plant several gardens in South Central Los Angeles. He wants his next garden to be a rectangle where the length is three times the width.
Answers (1)
Calcula: + (-4) + (1/3) + (√7) = me ayudan?
Answers (1)
Test. what mean 7+8
Answers (2)
If a circle has a diameter of (x+3) inches, what is its circumference? A. (x (Pi) + 3 (Pi)) inches B. (2x (Pi) + 6 (pi)) inches C. (x+3) (pi) inches/2 D. (xsquared+6x+9) inches
Answers (1)
New Questions in Mathematics
You board a Ferris wheel at ground level and travel to the very top, when it stops to allow more riders to get on. How many degrees has the Ferris wheel rotated?
Answers (1)
A right triangle with congruent legs is always a 45-45-90 triangle? True or False?
Answers (1)
What is the difference between a square and a rectangle? A) A square is a parallelogram and a rectangle is not. B) A square has 4 equal sides and a rectangle does not. C) A square has 4 right angles and a rectangle does not have to.
Answers (1)
The value of y varies directly with x, and y = - 8 when x = 2. Find y when x = 3
Answers (1)
L=3x+6 W=3x^2 what's the perimeter
Answers (1)
Home
»
Mathematics
» Solve using matrices. Show your work. x+y=5 2x-y=1
Sign In
Sign Up
Forgot Password?