Math (Alg 2)

posted by .

The following expression represents the value of which variable in the solution of the system of equations below?
|2 -1 1|
|1 2 6|
|3 -1 2|
|2 -1 -2|
|1 2 3|
|3 -1 -1|


A. Z
B. Y
C. X

  • Math (Alg 2) -

    You replace the third column in the NUMERATOR determinant with the right hand side, NOT THE DENOMINATOR to get the third variable, Z. Therefore you got 1/Z

  • Math (Alg 2) -

    Here is a link to Cramer's rule:

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    What is the difference between an equation and an expression?
  2. Math PIZZAZZZ

    how does a rodeo star get around?? well if you cant give me an answer can you help me. heres the instructions First Simplify the expression below. Then evaluate the expression for the given value or the variable. Find the simplified
  3. algebra

    What is the value of the x variable in the solution to the following system of equations?
  4. math

    Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph. x + 4y = –16 3x + 2y = 12
  5. math

    two systems of equations are given below for each system, choose the best description of it solution. 1) the system has no solution 2) the system has a unique solution 3) the system has a infinitity many solutions. they must satisfy …
  6. math

    two systems of equations are giving below for each system choosethe best description of its solution if applicable give solution x+4y=8 -x-4y= -8 choose which one this problem fit in 1)the system has no solution 2) the system has a …
  7. MATH

    Which of the following ordered pairs represents the solution to the system of equations below?
  8. math help pls pls

    Two systems of equations are shown below: System A 6x + y = 2 −x − y = −3 System B 2x − 3y = −10 −x − y = −3 Which of the following statements is correct about the two systems of equations?
  9. Math

    1. For the following system of equations, what is the x-value of the solution?
  10. precalculus

    please check my answers 1.Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1 2.Find the solution to the system of equations given …

More Similar Questions