A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

a = ? , b = ?

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

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

    4/8 = a/b for the first eqn yes?

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

    now you need a another eqn

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

    well , we can find the distance between (12,0) and (3,9) , and that distance should be equal to a+b

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

    distance between the points = sqrt [ ( 12-3)^2 + (0-9)^2 ] = sqrt [ 9^2 + 9^2] = sqrt( 2 x 9^2) = 9sqrt(2)

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

    so a/b = (1/2) --> ie b =2a , and a+b = 9sqrt(2) 2 eqns, two unknowns, pretty easy to solve yes?

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

    I assume you can solve them, ill leave it to you

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

    i'm alittle confuse right now

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

    it doesnt help if u dont say what it is you are confused about. nevertheless , this questionn is pretty similar to the other ones you put up ( though it is a bit harder ). The first eqn came from ratios of intersections of parallel lines

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

    then we needed to find another eqn to relate a and b , because you need two eqns to solve two unknowns , and we obverse from the picture that a+b was a distance between two points

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

    (h/H)2 = 9/25; Volume of large prism/Volume of small prism= (h/H)3

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

    :S, dont really undertand what u want

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

    my bad n it not that one up there a + b = sq root of (12-3)2 + (0-9)2. Once you have solved for a + b, then 4/12 = a/a+b .

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

    I guess that would have been another way to get the second eqn

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

    got is 12.7292206

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

    are u still there?

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

    what? the answers to the question are a=3sqrt(2) b= 6sqrt(2)

  18. 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.