Algebra 2(check pt 4)

posted by .

1)Cramer's Rule is used to solve the system of equations:3m-5n=12,4m+7n=-5

Which determinant represents the numerator for n?
answer=[12 -5]
[-5 7]

2)Cramer's Rule is used to solve the system of equations:3x-y+2z=17,4x+2y-3z=10,and 2x+5y-9z=-6

Which determinant represents the numerator for z?
answer=[3 -1 17]
[4 2 10]
[2 5 -6]

3)Which matrix would NOT be used to write a matrix equation for the system of equations:5m-2n=13 and -m+n=-2?
answer=[5 -2]
[-1 1]

4)Which product would be used to solve the matrix equation below by using inverse matrices?
[3 -4][a] [6]
[2 1] [b]= [7]
answer=1/11[1 4] [6]
[-2 3][7]
Thanks for the help:)

  • Algebra 2(check pt 4) -

    I am so stuck on these same exact problems on my Algebra 2 test.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. cramers rule

    Solve the following linear system for x using Cramer’s rule. Show work. x + 2y – 3z = -22 2x – 6y + 8z = 74 -x – 2y + 4z = 29 Cramer’s rule uses determinants to find the solution Set up a 3by3 matrix using the coefficients …
  2. Discrete Math

    I am really stuck on these problems. I've worked a lot of them but I can't get these. Sometimes I think I know the answer but I can't show how I got it. 1.) Solve each matrix equation for X. 2X + 5A = B 2.) Find the following matrices: …
  3. College Algebra

    Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan Elimination. You must show row operations. b. Solve the above system of equations using Cramer's Rule.
  4. Math

    Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan Elimination. You must show row operations. b. Solve the above system of equations using Cramer's Rule.
  5. Math

    Solve using Determinants and Cramer's Rule?
  6. Algebra 1

    Use Cramer's rule to solve the system. -2x - 2y = -16 2x + 3y = 23
  7. Algebra II

    1) when using cramer's rule to solve the system of equations containing 5x - y = 5 and -3x + y = -9 the denominator for the x and y variables looks like which of these determinants ?
  8. Algebra

    Use Cramer's Rule to solve each system of equations. a+b+5c=2 3a+b+2c=3 4a+2b-c=-3
  9. Algebra

    Use Cramer's rule to solve the following system of equations. If D=0, use another method to solve the system. x+y=11 x-y=5
  10. pre - CALCULUS

    Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. 2x + y = 8 6x + 3y = 24 A. system is inconsistent B. system contains dependent equations b ?

More Similar Questions