A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

the length of a rugby league field is 52 meters longer than its width "w" . The area of a rugb league field is 8160 square meters. Find the dimensions of the field

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A=8160=w*(w+52)=w^2 +52w it is a quadratic equation - solve it for w (need positive value only) let me know if you have a problem... :)

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know how to solve quadratic equations

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you equation looks like: w^2 +52w-8160=0 w=[-52+/- sq.rt( 52^2-4*(8160))]/2 w=[-52+/-sq.rt(10,144)]/2 w=(-52 +/-188)/2 you choose only positive value (width can not be negative), so w=(188-52)/2 w=68 if w=68, length =68+52=120

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    don't forget to put meters in your answer :)

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thank you

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    welcome!

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.