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Emmaripplinger
@Emmaripplinger
April 2019
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Bonjour j'ai besoin d'aide pour mon Dm de Maths:
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Bonjour,
1) R(x) = 110x
2) B(x) = 110x-(x²-60x+6000)
= 110x²-x²+60x-6000
= -x²+170x-6000
3) (120-x)(x-50)=
120x-6000-x²+50x =
-x²+170x-6000
5) 50<x<120
6a) il suffit de remplacer x par les valeurs ds -x²+170x-6000 et calculer
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Thanks 1
emmaripplinger
Merci beaucoup
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Verified answer
Bonjour,1) R(x) = 110x
2) B(x) = 110x-(x²-60x+6000)
= 110x²-x²+60x-6000
= -x²+170x-6000
3) (120-x)(x-50)=
120x-6000-x²+50x =
-x²+170x-6000
5) 50<x<120
6a) il suffit de remplacer x par les valeurs ds -x²+170x-6000 et calculer