A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

I am trying to calculate a spread but struggling to calculate the answer to the power of 1/3 as I can't find the button on my calculator. Can anyone help? The formula is 3[3/4x50x4,000,000/.00025]to pwer 1/3

  • This Question is Closed
  1. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    When I multiply/divide I get 1.8 10E12 so I guess we are looking the the cube root of 1.8 as the power 0f 10 would be 10^4

  2. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    My calculator agt Casio fx-300W has a cube root button but I believe you could use the x^y button, anyway my cube root button gives the cube root of 1.8 as 1.2644

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

    Yes, the x^y button can be used. enter 1.8, enter x^y, enter .33333 and see what you get.

  4. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1.2644 10^4

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

    What did you come up with. I may have gotten the value in the paren wrong??

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

    The answer is £25,303

  7. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Let me refigure: I am taking 3[.75x50x4,000,000/.00025]to the 1/3 Did you get that before we take the cube root?

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

    yes thats the right figures

  9. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[3((6.0)10^{11})^{1/3}\]

  10. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Is that what you get before taking the cube root?

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

    If i feed into my calculator i get 3[6^11]^1/3

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

    I'm not a genius with equations so am struggling with this one

  13. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I am adjusting the expression to read:\[3(0.60 x 10^{12})^{1/3}\]

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

    So now I only need the cube root of 0.60 as the cube root of 10^12 is 10^4 \[3(.8434)10^{4}=2.5302(10^{4})\]

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

    That agrees with your answer. Have you tried extracting the cube root using the x^y key of your calculator?

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

    How do you do that? I assume I need to break the equation down and calculate the different parts but how did you get to 3(0.60x10^12)1/3? Or am I being a bit thick?

  17. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you understand scientific notation using exponents for 10?

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

    No

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

    \[(3(6.0 x(10^{11})^{1/3}\] is the value obtained on the values you have included inside the bracket. Now the 10^11 is the multiplier for the 6.0 or actually it is 600,000,000,000 which is 6 times 10^11 or 6 and 11 zeroes. A very unwieldy number.

  20. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[10^{11} = 10^{2}(10^{9})\]

  21. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    3[6.0 10^11]^1/3 is the same 3[6.0 x 10^-1 x10^2] 3[.6 x 10^-12]^1/3 and so on. On using the calculator on the data inside the brackets, since there were no additional parens, proceed from left to right inside the bracket. Note that the cube root only applied to the data inside the bracket. I made the mistake on my first attempt by multiplying by three before taking the cube root.

  22. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Review "scientific notation" it will surely help you when you deal with large and very small values. sometimes the calculator will automatically express (display) large numbers using that form of notation.

  23. R
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Good luck.

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

    Thanks for your help, much appreciated.

  25. 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.