Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

madsmckell

  • one year ago

word problem!! A parcel of land is 6ft longer than it is wide. Each diagonal from one corner to the opposite corner is 174 ft long. What are the dimensions of the parcel?

  • This Question is Closed
  1. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Draw a picture. That will help you figure out what to do.

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

    |dw:1377832287651:dw|

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

    thanks but how do I solve it?

  4. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    It is 6 feet longer than it is wide, so you can write an expression for both the length and the width.

  5. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay.... i did that... then what?:)

  6. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Use the Pythagorean theorem.

  7. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1377832617688:dw|

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

    so... (w+6)^2+w^2=174^2??????

  9. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Exactly.

  10. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Solve for w.

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

    okay i will tryyyy

  12. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You can do it! I have faith in you!!

  13. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i was trying to solve for w but i got stuck... will someone help me and walk me through it??

  14. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Stuck where? Show your steps and I will help you?

  15. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (w+6)^2+w^2=30276..... w^2+12w+36+w^2=30276......2w^2+12w+36=30267

  16. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and now im stuck

  17. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i was trying to use the quadratic formula but i wasnt sure what to do and my numbers were wayyyyyy big

  18. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Great job! Find a calculator, you are going to need it. :-) The quadratic formula is what you will need. I'm still working through it. Before you get to that, get all terms to the left side of the equation and set it equal to 0.

  19. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The numbers do get big, but you can handle it, with your calculator's help.

  20. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    when i do the quadratic inside the root is negative so how would i simplify it??? isnt the quadratic formula -b plus or minus the root of b^2-4ac all over 2a

  21. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    It is not negative. You dropped a negative on the floor....look around, I'm sure it is still nearby. :-)

  22. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    One you get all the terms to the left side, the constant term will be negative.

  23. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I divided the whole equation by 2 to keep the numbers smaller. \(w^2+6w-15120\)

  24. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but when you put in -15120 it is negative in the root soo it wont workkk

  25. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the answer in the back of the book is 120 by 126

  26. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so still not sure how that works when what ever i root comes out to be a decimal

  27. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The answer in the back of the book is correct. \[\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\] \[w^2+6w-15120\] \[\dfrac{-6 \pm \sqrt{6^2-4(1)(-15120}}{2(1)}\] remember that a negative times a negative is a positive.

  28. madsmckell
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wow thanks soooo mcuh!! you are AMAZZZZINNNGGG!!!!

  29. gypsy1274
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Your Welcome!

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.