Articles
Register
Sign In
Search
KodaSim
@KodaSim
May 2019
1
103
Report
15 points !
Bonsoir, pouvez-vous m'aider à faire cet exercice, s'il vous plaît ? Merci d'avance !
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,
x+y = 21
xy = 104
x =-y+21
(-y+21)y-104 = 0
-y²+21y-104 = 0
b²-4ac = (-21)²-4(-1*-104)= 441-416 = 25
Δ>0 2solutions
(-b-√Δ)/2a = (-21-5)/-2 = 13
(-b+√Δ)/2a = (-21+5)/-2 = 8
P = 2(13+8) = 42cm
A = 13*8 =104cm²
0 votes
Thanks 1
More Questions From This User
See All
KodaSim
October 2022 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
2 petits exercices en Physique
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Bonsoir, pouvez-vous m'aider ? S.V.P, je n'arrive vraiment pas !
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Responda
KodaSim
January 2021 | 0 Respostas
Responda
×
Report "15 points ! Bonsoir, pouvez-vous m'aider à faire cet exercice, s'il vous plaît ? Merci d'avance !.... Pergunta de ideia de KodaSim"
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,x+y = 21
xy = 104
x =-y+21
(-y+21)y-104 = 0
-y²+21y-104 = 0
b²-4ac = (-21)²-4(-1*-104)= 441-416 = 25
Δ>0 2solutions
(-b-√Δ)/2a = (-21-5)/-2 = 13
(-b+√Δ)/2a = (-21+5)/-2 = 8
P = 2(13+8) = 42cm
A = 13*8 =104cm²