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Samira225
@Samira225
May 2019
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Bonjour aider moi pour le 1 sil vous plait merci davance
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Bonjour,
1)
a) 200 milliards = 200 000 000 000 = 2 × 10¹¹
b) 3 600 × 24 = 86 400 = 8,64 × 10⁴
2) (2 × 10¹¹) ÷ 8,64 × 10⁴ = (2÷8,64) × (10¹¹÷10⁴)
= (2÷8,64) × 10¹¹⁻⁴
= (1÷4,32) × 10⁷
= 100/432 × 10⁷
= 50/216 × 10⁷
= 25/108 × 10⁷
= 0,23148148148148.... × 10⁷
= 2,3148148148..... × 10⁶
= 2 314 814,8148148....
≈ 2,3 millions
3 votes
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Samira225
bonjour merci bcp je voulais te mettre toutes les étoiles mais je sais pas pk sa na mis que3 dsl
Commentaires (1)
Verified answer
Exercice 1 : 1°a) 2 x 10^11b) 3600 x 24 = 86 400 s/j donc 8,64 x 10^4
2° (2 x 10^11) / (8,64 x 10^4) = 2,3148 x 10^6 = 2 300 000
1 votes
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Samira225
mercii bcp
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Lista de comentários
Verified answer
Bonjour,1)
a) 200 milliards = 200 000 000 000 = 2 × 10¹¹
b) 3 600 × 24 = 86 400 = 8,64 × 10⁴
2) (2 × 10¹¹) ÷ 8,64 × 10⁴ = (2÷8,64) × (10¹¹÷10⁴)
= (2÷8,64) × 10¹¹⁻⁴
= (1÷4,32) × 10⁷
= 100/432 × 10⁷
= 50/216 × 10⁷
= 25/108 × 10⁷
= 0,23148148148148.... × 10⁷
= 2,3148148148..... × 10⁶
= 2 314 814,8148148....
≈ 2,3 millions
Verified answer
Exercice 1 : 1°a) 2 x 10^11b) 3600 x 24 = 86 400 s/j donc 8,64 x 10^42° (2 x 10^11) / (8,64 x 10^4) = 2,3148 x 10^6 = 2 300 000