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

lilmommaannie Group Title

Solve by using the addition method.. Provide the solution set: 3x^2-5y^2=-33 2x^2+5y^2=35

  • one year ago
  • one year ago

  • This Question is Closed
  1. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    when you add these 2 equations the terms in y disappear to give 5x^2 = 2 solve for x (there will be 2 solutions) and plug these into one of the original equations to find the values of y.

    • one year ago
  2. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    can you finish this or need more help?

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

    But now I have another one that the y values do not disappear?!

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

    And I dont get them!!

    • one year ago
  5. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok post it

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

    2x^2-3y^2=-19 3x^2+2y^2-30

    • one year ago
  7. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok to do this you multiply equation 1 by 2 and equation 2 by 3 to give 4x^2 - 6y^2 = -38 9x^2 + 6y^2 = 90 is that = 30 in second equation?

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

    yes sorry lol

    • one year ago
  9. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok so if you add these 2 equations you will eliminate y

    • one year ago
  10. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    when you multiply equations be sure to multiply each term

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

    Thanks!!!!! I see it now!!!

    • one year ago
  12. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    good

    • one year ago
  13. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    that is what this website is for.

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

    So, would the answer be 2,3???

    • 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.