alors:
1) f(x) = -5x+7 = 33
donc -5x = 26
soit x = -26/5
2) f(x) = -5x+7 < -2
donc -5x < -9
soit x > 9/5
ca me rapelle ma jeunesse... lol mais c pas bo de tricher... ;-)
2006-12-27 02:36:05
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answer #1
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answered by lapin vert 1
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C'est du foutage de gueule : sors ton cours, la réponse est dedans.
2006-12-27 12:58:09
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answer #2
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answered by divers789 2
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Voici les réponses ^^
1)
f(x)= -5x+7
33 = -5x+7
26 = -5x
x = -26/5
2)
f(x) <-2
-5x+7 < -2
-5x < -9
x > -9/-5
x > 9/5
2006-12-27 10:36:46
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answer #3
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answered by argonos10 2
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F(x)=33
-5x+7=33
x=-26/5
x=-5,2
F(x)<-2
-5x+7<-2
x>1,8
2006-12-27 10:34:38
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answer #4
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answered by Anonymous
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2 Q B C
2006-12-27 10:33:29
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answer #5
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answered by Anonymous
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-5.2 et {9/5exclus ; -l'infini}
2006-12-27 10:32:43
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answer #6
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answered by jean f 4
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x= -26/5 et x> 9/5
2006-12-27 10:31:43
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answer #7
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answered by Anonymous
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Si tu cales là-dessus, change de voie....
2006-12-27 10:31:22
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answer #8
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answered by kortez 6
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33=-5x+7
2006-12-27 10:29:57
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answer #9
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answered by steph 5
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33=-5x+7 =>-5x=26 =>x=-26/5 =>x=-5.2<2-.
2006-12-27 12:25:53
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answer #10
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answered by khababaoussama 1
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