A community for students.
Here's the question you clicked on:
 0 viewing
KE8717504
 2 years ago
consider the rectangle below. It's area is 5a^2+21ab+4b^2 and it's length is 2a+8b. find it's width w, in terms of a and b, by dividing it's area by it's length.
KE8717504
 2 years ago
consider the rectangle below. It's area is 5a^2+21ab+4b^2 and it's length is 2a+8b. find it's width w, in terms of a and b, by dividing it's area by it's length.

This Question is Closed

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1347684283899:dw

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1what do you have so far

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1I'm just not sure how to work this.

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1or how to go about starting it?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Use the idea that Area = Length * Width or A = LW Solve for W W = A/L

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Then make the proper substitutions. Then divide and simplify.

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 this is what i get when i do that. 2ab^2+5a^2+21ab+8b

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1That is diving the Area by the length

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1simplify (5a^2+21ab+4b^2)/(2a+8b)

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1would that make my width?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Can you factor 5a^2+21ab+4b^2 at all?

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1yes into (a+4b)(5a+1b) right?

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1but u still get the same answer right 5a+b/2 right?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Did you mean \[\Large \frac{5a+b}{2}\] ?

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 yea

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1then yes, you are correct

KE8717504
 2 years ago
Best ResponseYou've already chosen the best response.1I should get a learners metal on that one :0
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.