A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
A rectangular pen for a pet is 3ft longer that it is wide, give possible values for the width W of the pen if its area must be between 180 and 460 sqaure feet, inclusivley.
anonymous
 5 years ago
A rectangular pen for a pet is 3ft longer that it is wide, give possible values for the width W of the pen if its area must be between 180 and 460 sqaure feet, inclusivley.

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If area is 180 W * ( W + 3) = 180 w^2 + 3w = 180 w = 12 if area is 460, W^2 + 3w = 460, w = 20 12<W<20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so that would mean 12ft and 20 ft

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No, the width can lie ANYWHERE between 12ft and 20ft. He tested the extreme cases here, and reasoned that a value of W somewhere between 12ft and 20ft would result in an area greater than 180 but less than 460. If you'd like to confirm this fact, try graphing\[Area=w*(w+3)=w^2+3w\] Look at what values of w output values that are between 180 and 460 and you should see that 12ft and 20ft indeed bound these values! I hope that helps solidify your understanding!
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.