A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Mutie

  • one year ago

** I NEED HELP ** ( Will medal and fan like always ) ---- Diagram: http://prntscr.com/8as6gf --- Jocelyn wants to adopt one star for her mother and one star for her father. She has narrowed her choices down to four stars that are located on a straight line from the earth. Jocelyn wants to adopt the two stars that are closest to each other. 1. Which two stars should she adopt? 2. What is the distance between the stars? (Hint: Make a diagram and align the stars in order from closest to farthest from the earth.) 3. Show or explain your work. --- I don't really understand how t

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

    I need to show my work on every problem at least, I don't really understand what to do though.

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

    @texaschic101 @Zale101

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

    @freckles

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

    @amistre64

  5. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    how do we know the distance between 2 things?

  6. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    i dont know how your material does it, but id at least get them all speaking the same term ... the lowest exponent

  7. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    .176 x 10^(14+4) -> 1760 x 10^4 22.13 x 10^(14+2) -> 2213 x 10^4 31.42 x 10^(14+0) -> 31.42 x 10^4 125.5 x 10^(14+1) -> 1255 x 10^4 now its simpler to compare the distances

  8. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    bah, all those are 10^(14) not 10^(4) .... minor typo, but the rest is correct

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

    So with that.. do I work them out? Sorry if I'm incorrect, I'm still a bit confused.

  10. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    ideally yes, or logically we can conclude that 31 is not going to be closer to any of the others by default we can then average the low and high that remains to see where the middle falls .... (2213+1255)/2 = 1734 the middle is on the high side of 1734 so we have our closest starts

  11. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    part 2 is just listing the starts by order of distance, and 3 is explaining your work

  12. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    but the thing is, my thought process is not going to conform to the method your material expects of you ... so this is just something that would work from my head

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

    So our closest stars would be... 1760 x 10^4 and 1255 x 10^4 ? ( AKA, Star A and Star D?)

  14. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    work your process A-B A-C A-D B-C B-D C-D

  15. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    22 and 17 are the closest to each other

  16. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1440978143962:dw|

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

    I see, but for question one (Which two stars should she adopt?) the answer would be Star A and D? Or am I answering that question wrong?

  18. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    she want the 2 stars that are the closest to each other ... i see that as A and B

  19. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    when we take the midpoint of 12 and 22, we get 1734 if 1734 is the middle point, then 1760 is closer to the high side then the low side

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

    Oh okay I see now

  21. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    the key to me is to get them speaking all in the same 10^(14) formats so that all we do is compare the multipliers

  22. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    for a general proof, spose we have 2 numbers a x 10^n and b x 10^n subtract them a x 10^n - b x 10^n factor out the common 10^n 10^n (a - b) the difference is determined by a and b, and not the base 10 stuff

  23. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    if we let them all speak in terms of 10^(14) then the rest is just working with the multipler parts and we can ignore the 10^(14)

  24. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    since 31 is clearly not anywhere near the other 3, its immaterial to us by taking the midpoint of the remaining extremes, we can judge were to place the inbetween value ... (2213 + 1255)/2 = 1734 so we know that inbetween value will fall to one side or the other, and be closer to that side 1255 ... 1734 .... 2213 ^ 1760 by default, the 17 and 22 are closest to each other

  25. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    how you express this the way your material wants you to .... i got no clue tho

  26. amistre64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    you write it up i terms you comprehend and ill review it for you

  27. 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.