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Canie69
@Canie69
May 2019
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Bonjour pouvez-vous m’aider merci exercice 5
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MéloMilano
Verified answer
Bonjour
a)
f(3)=10-2×3
=10-6
=4
f(-4)=10-2×(-4)
=10+8
=18
b)
f(9)=10-2×9
=10-18
=-8
d)
10-2x=0
-10-2x=-10
-2x=-10
x=-10/-2
x=5
10-2×5
10-10
0
1 votes
Thanks 1
MonsieurFirdown
Bonjour
♧a. On a donc :
f(3) = 10 - 2×3
f(3) = 10 - 6
f(3) = 4
f(-4) = 10 - 2×(-4)
f(-4) = 10 + 8
f(-4) = 18
♧b. Pareil que à la "a" il te suffit de calculer f(9)...
♧c. Celà revient à résoudre f(x) = 0 d'où :
10 - 2x = 0
- 2x = - 10
x = 10/2
x = 5
♧d. On a donc :
10 - 2×2
= 10 - 4
= 6 --> M (2 ; 6)
Voilà ^^
0 votes
Thanks 1
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Bonsoir, pouvez vous m'aider effectuer les calculs suivants : A= 1/7+3/7+5/7 B=1/8+3/4+1/8 C=4/5x2/3x5/4 D=5/4x8x7/2 E=3/2+1/2x5/3 F=5/6x(3/4+1/8) G=12/5-15/10+5/10 H=3/4x2/3+9/4x2/3 I=17/3-7/3x1/2 J=4/5x1/2-8/10x3/6
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Bonjour besoin d aide. Merci
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Verified answer
Bonjoura)
f(3)=10-2×3
=10-6
=4
f(-4)=10-2×(-4)
=10+8
=18
b)
f(9)=10-2×9
=10-18
=-8
d)
10-2x=0
-10-2x=-10
-2x=-10
x=-10/-2
x=5
10-2×5
10-10
0
♧a. On a donc :
f(3) = 10 - 2×3
f(3) = 10 - 6
f(3) = 4
f(-4) = 10 - 2×(-4)
f(-4) = 10 + 8
f(-4) = 18
♧b. Pareil que à la "a" il te suffit de calculer f(9)...
♧c. Celà revient à résoudre f(x) = 0 d'où :
10 - 2x = 0
- 2x = - 10
x = 10/2
x = 5
♧d. On a donc :
10 - 2×2
= 10 - 4
= 6 --> M (2 ; 6)
Voilà ^^