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

soty2013

If the radius of a sphere is measured as 7 m with an error of 0.02 m, then find the approximate error in calculating its volume.

  • one year ago
  • one year ago

  • This Question is Closed
  1. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    @Yolo? @yololol

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

    Why would I help you?

    • one year ago
  3. Yolo?
    Best Response
    You've already chosen the best response.
    Medals 5

    The answer is 6

    • one year ago
  4. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    you both look so sweet sid by side :) GOD Bless you...

    • one year ago
  5. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    Bye...

    • one year ago
  6. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks @chad

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

    http://media.tumblr.com/tumblr_mdyb2b8jJu1rp7g3w.gif

    • one year ago
  8. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    is that you @becca ?

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

    It's not me in the Gif, no.

    • one year ago
  10. soty2013
    Best Response
    You've already chosen the best response.
    Medals 0

    lol

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

    The approximate error would actually be 12 cubic meters. ~~~~~~~ Here's the formula for finding the volume of a sphere: \[\frac{ 4 }{ 3 }\pi r^{3}\] That's "four-thirds, times pi, times the radius CUBED." (Not squared, even though the little 3 looks like a 2.) ~~~~~~~~~~~~~~ If we assume that the radius of the sphere is 7, then the volume would be 1432.44 cubic meters. But since the error is 0.02, the ACTUAL radius of the sphere could be 7.02, or 6.98. If we assume that the radius is 7.02, then the volume would be 1444.76 cubic meters. And if we assume that the radius is 6.98, then the volume would be 1420.20 cubic meters. ~~~~~~~~~~~~~ The difference between 1444.76 and 1432.44 is 12.32. And the difference between 1432.44 and 1420.20 is 12.24. So you see, the error is about 12.00 cubic meters, if we round it.

    • one year ago
  12. Yolo?
    Best Response
    You've already chosen the best response.
    Medals 5

    Damn you just wasted all your time writing that lol

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

    Better than wasting my time on giving someone a wrong answer. Right?

    • one year ago
  14. goformit100
    Best Response
    You've already chosen the best response.
    Medals 0

    @rebeccaskell94

    • one year ago
  15. Yolo?
    Best Response
    You've already chosen the best response.
    Medals 5

    He didnt really want an answer lol he was just trying to troll me and Becca

    • one year ago
  16. goformit100
    Best Response
    You've already chosen the best response.
    Medals 0

    No...

    • one year ago
  17. goformit100
    Best Response
    You've already chosen the best response.
    Medals 0

    @JamesJ

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

    @goformit100 "No"?

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

    Depending on whether I choose to multiply pi with 1.33, or to multiply pi with 1.33333, my spherical volume could be off by anywhere from 3 to 5 meters. But in the end, the error is still about 12 cubic meters.

    • 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.