A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

you have 100 ft of fencing to use for three sides of a rectangular fence, with your house enclosing the fourth side. the area of the enclosure is given by A=-2x^2+100x. graph the equation to find the maximum area possible, and how long each side needs to be to obtain that area?

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

    diffrentiate the area function derivative(-2x^2+100x)=-4x+100 equate this to zero we find x=25 this is only solution so it must be maximum sides are 25,50 area is 1250 sq.ft

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

    thank you very much! although i do need to learn more about derivatives, because i don't really understand how to get the -4x+100 part.

  3. 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.