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

MeowKate Group Title

Can someone check my answer For what interval does this quadratic inequality hold ture? x^2−4x−4≤28 A.[2,6] B. [-4,8] C. [-1,2] D. [-2,6] E. [0,4]

  • one year ago
  • one year ago

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

    will it be b?

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

    solve x^2 - 4x - 32 <=0 for x (x -8)(x + 4) <= 0 between x = -4 and x = 8, the inequality is true for x < -4, the left side exceeds 28 for x > 8, the left side exceeds 28

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

    ??

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

    @tkhunny

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

    The interval is -4<=x<=8

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

    |dw:1361409569193:dw|

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

    Plug the numbers of the interval betwenn -4<=x<=8 in the equation above.

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

    @MeowKate > will it be b? CORRECT

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

    The option "B" is the correct one.

    • 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.