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Banane95190
@Banane95190
January 2021
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URGENTTT SVP SVP SVP
J'arrive pas !!
Merciiiiiii (pièce joint)
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calinizou
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Bonjour c'est simple pour déterminer le signe pour les produit - x -= +
-x+=- +x+=+ donc la pour a on -x-x-=- et b = -x-x-x-=+
a:-4(-0.8)=3.20 6x(-10)=-60 3.20x (-60) =-192 x25=-4800
b: 0.12x( -2)=-0.24 x(-4)=0.96 x(-5)=-4.8 x(-100)=480
ex 41
a: 2.5x(-2)=-5x(-3)=15x(-4)=-60 et -11.5x(-60)=690
b: 9x(-100)=-900x5=-4500 et -20 x(-0.07)=1.4 et -4500x1.4=-6300
c: -5x(-4)=20 et -0.07x20=-1.40 et 100x(-20)=-2000 et1.4x(-2000)=-2800
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Bonjour c'est simple pour déterminer le signe pour les produit - x -= +-x+=- +x+=+ donc la pour a on -x-x-=- et b = -x-x-x-=+
a:-4(-0.8)=3.20 6x(-10)=-60 3.20x (-60) =-192 x25=-4800
b: 0.12x( -2)=-0.24 x(-4)=0.96 x(-5)=-4.8 x(-100)=480
ex 41
a: 2.5x(-2)=-5x(-3)=15x(-4)=-60 et -11.5x(-60)=690
b: 9x(-100)=-900x5=-4500 et -20 x(-0.07)=1.4 et -4500x1.4=-6300
c: -5x(-4)=20 et -0.07x20=-1.40 et 100x(-20)=-2000 et1.4x(-2000)=-2800