Articles
Register
Sign In
Search
Mag6
@Mag6
May 2019
1
47
Report
Bonjour je dois corriger un exercice auquel j'ai eu tout faux, pouvez vous m'aider svp? (ex 3)
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms and service
You must agree before submitting.
Send
Lista de comentários
Commentaires
Verified answer
Bonjour,
1) P = 2(AB+BC)
24 = 2(5+BC)
24 = 10+2BC
24-10 = 2BC
14 = 2BC
BC = 7cm
2) BC = (24-2x)/2 = 12-x
3a) A = x(12-x) = 12x-x²
f(x) = -x²+12x
b) f(4) = -(4)²+12*4 = -16+48 = 32
pour x = 4cm, A = 32cm²
c) -(3)²+(12*3) = -9+36 = 27
pour x = 3cm, A = 27cm²
0 votes
Thanks 1
More Questions From This User
See All
Mag6
January 2021 | 0 Respostas
Responda
Mag6
May 2019 | 0 Respostas
Responda
Mag6
May 2019 | 0 Respostas
Bonjour j'aurais besoin de la question b) du 2) de l'exercice 4 s'il vous plait
Responda
Mag6
May 2019 | 0 Respostas
Responda
Mag6
May 2019 | 0 Respostas
Responda
×
Report "Bonjour je dois corriger un exercice auquel j'ai eu tout faux, pouvez vous m'aider svp? (ex 3).... Pergunta de ideia de Mag6"
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
Sobre nós
Política de Privacidade
Termos e Condições
direito autoral
Contate-Nos
Helpful Social
Get monthly updates
Submit
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Bonjour,1) P = 2(AB+BC)
24 = 2(5+BC)
24 = 10+2BC
24-10 = 2BC
14 = 2BC
BC = 7cm
2) BC = (24-2x)/2 = 12-x
3a) A = x(12-x) = 12x-x²
f(x) = -x²+12x
b) f(4) = -(4)²+12*4 = -16+48 = 32
pour x = 4cm, A = 32cm²
c) -(3)²+(12*3) = -9+36 = 27
pour x = 3cm, A = 27cm²