A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

I need help this is sooo hard 8th grade math!

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

    it is hard, isn't it?

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

    aalright haha im sure if you tae it in steps everything willl be simplar

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

    What is the value of the expression \[ \frac{ 1 }{ 4^{-3}}\]

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

    alright easy lets start by looking at the problem

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

    a.12 b.64 c. 1/64 d. 1/12

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

    we have a 4^-3 in the denominator. what does that tell you?

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

    Its either a or b

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

    umm idk

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

    lets not worry about the answer right now lets worry about the problem itself

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

    alright i will let you know a nice rule. when you bring a number from the denominator to the numerator you slip the exponent

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

    so something like 1/5^-2 = 5^2

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

    do you understand?

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

    no

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

    ok thats fine. its just a rule. i just want to make sure you know 5^2 is 5 squared

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

    do you understand that?

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

    yes

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

    alright cool

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

    so with your problem we have 1/4^-3

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

    we bring the 4^-3 to the numerator

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

    and we get?....what?

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

    umm

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

    ...

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

    ok with our rule we change the sign of the exponent

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

    so what is it?

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

    4* -3 ???????

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

    oh i see what you are confused about. when i am talking about sign i mean positive or negative

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

    so all i mean by change the sign of the exponent is change it from -3 to 3

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

    so you have just 4^3

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

    now what is 4 to the power of 3?

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

    Its 64!

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

    tysm for helping me!

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

    you are welcome please look over notes on this

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

    its essential on later math problems you will have i highschool

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

    SO happy!

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

    im in the us

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

    well i mean like algebra and pre calc it makes things easier if you know basic stuff like this

  37. 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.