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

rafeds08 Group Title

express in roster form: B={xlxE N and 6<x<10}

  • 2 years ago
  • 2 years ago

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

    Just list all the natural numbers in the interval (6,10)

    • 2 years ago
  2. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    B={7,8,9}

    • 2 years ago
  3. myininaya Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yep, that is right.

    • 2 years ago
  4. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    thanks

    • 2 years ago
  5. myininaya Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    np

    • 2 years ago
  6. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what is np?

    • 2 years ago
  7. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    myininaya', what if the set Q of all prime numbers less than 10? can we consider the negative numbers?

    • 2 years ago
  8. myininaya Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    I think it depends on the definition of prime numbers your teacher chose. I choose the definition that they are natural numbers greater than 1 and are only divisible by 1 and itself. For example: 13 since 13 and 1 are it's only factors

    • 2 years ago
  9. UnkleRhaukus Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\{n\in \mathcal N |(1<n<10)∧(\forall x,y\in \mathcal N)[(xy=n)⇒(x=1∨y=1)]\}\]

    • 2 years ago
  10. myininaya Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    So do you think you can now list the prime numbers between 1 and 10 (not including 10 since it doesn't say equal to)?

    • 2 years ago
  11. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yap

    • 2 years ago
  12. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    A math teacher is preparing an exam each of his Algebra class. Math-alino and Math-matalino, covering topics A (circles) and B (inequalities). He wants to design the exams so that both classes will have the same number of questions on A and also on B. Each question on A is worth 15 points in section Math-alino and 20 points in section Math-matalino while each question on B is worth 10 points in section Math-alino and 5 points in section Math-matalino. If the total number of points in both exams is 100, how many questions should he ask on each topic?

    • 2 years ago
  13. rafeds08 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    help me please UnkleRhaukus thanks in advance

    • 2 years ago
  14. UnkleRhaukus Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    too confusing

    • 2 years 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.