Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

vivalakoda Group Title

What is the formula to find the value of y using Cramer’s Rule? Dy

  • one year ago
  • one year ago

  • This Question is Closed
  1. tcarroll010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    http://tutorial.math.lamar.edu/Classes/LinAlg/CramersRule.aspx

    • one year ago
  2. abayomi12 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    an example for that

    • one year ago
  3. abayomi12 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    1) 5x+7y= -3. 2x+3y= -1. The denominator block [which I would call determinant or matrix if the text editor would provide decent graphics] is 5 7 2 3. Its value is 1. [5*3 - 2*7 = 15 - 14.] The par column is -3 -1, so the x numerator block is -3 7 -1 3. Its value is -2. [-9 - (-7).] With a denominator of 1, this also means x = -2. The y numerator block is 5 -3 2 -1. Its value and the value of y = 1.

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.