Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

jimmy2016

  • 3 years ago

V=(1/3)pie r^2h solve for r

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

    that means that we want r by itself. So everything on the right hand side must go away except the r

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

    \[V=\frac{1}{3}\pi r^2h\] What do you want to get rid of first?

  3. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    um 1/3

  4. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    great that's division. Opposite of division is multiplication so we have to multiply both sides by 3\[3*V=3*\frac{1}{3}πr^2h\]\[3*V=πr^2h\]

  5. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now we must get rid of pi and h so we have to divide both sides by pi and h....what do you get then?

  6. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y by three

  7. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    can you write it again?

  8. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1343255379829:dw|

  9. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{3∗V}{\pi h }=\frac{πhr^2}{\pi h}\]

  10. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    great now we need to square root both sides.

  11. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know how

  12. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok square root takes away the squared part in r^2 watch \[\frac{3V}{\pi h}=r^2\]\[\sqrt{\frac{3V}{\pi h}}= \sqrt{r^2}\]\[\sqrt{\frac{3V}{\pi h}}= r\]

  13. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    but wait we square root both sides so we need the plus or minus\[\pm \sqrt{\frac{3V}{\pi h}} =r\]

  14. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    huh

  15. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what does that mean

  16. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so whats the answer because i got confused

  17. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it's that. You have two answers one that is positive and one that is negative

  18. Romero
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    that's what this sign means\[\pm \]

  19. jimmy2016
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ohhhhhh okay wow thanks i didnt know that I am just going to high school so this is new

  20. 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