A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

I would love some help please...At a private school in addition to tuition, students are charged for lab fees and supplies as shown: Kgtn = $230 1st = $271 2nd= $300 4th = $340 6th = $369 7th = $385 Let f(n) be the per student charge (in dollars) for lab fees and supplies for nth grade, kindergarten is shown by n=0. A model for this situation is f(n)=228 4√n+1 Estimate for what grade the per student charge for lab fees and supplies is $394.

  • This Question is Closed
  1. dumbcow
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    is that sqrt(n) or sqrt(n+1)

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

    n+1

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

    sorry should have put (n+1)

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

    whats in between the 8 and 4? could you rewrite f(n)

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

    = 228 4√n+1) There is a space btwn 228 then a small raised 4 before the radical

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

    oh ok f(n) = 394, solve for n \[\sqrt[4]{n+1} = \frac{394}{228}\] \[n+1 = (1.728)^{4}\] \[n=7.92\]

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

    so in other words, 8th grade :)

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

    but wait i get 8.916 for (1.728)^4

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

    yes but that equals n+1 subtract 1 on both sides...

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

    got it...thank you si much

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

    so much

  12. 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.