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TheTigerRoaa
@TheTigerRoaa
May 2019
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Re-Bonjour,
Mon devoir à mal été compris, raison pour laquelle je le re-poste mais cette en PDF. C'est l'exercice 4 à 6
Merci à ceux qui m'aiderons :)))
TheTigerRoaa, Amicalement
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GirlDuBahut
Bonjour,
Exercice 4 :
A = 2 ×
B = 7,5 ×
A × B = (2 ×
) × (7,5 ×
) = 15
Exercice 5 :
Si x = 5, alors E = 3x² + 5x - 2
E = (3 × 5)² + 5 × 5 - 2
E = 15² + 5 × 5 - 2
E = 225 + 5 × 5 - 2
E = 225 + 25 - 2
E = 248
Si x = 7, alors E = 3x² + 5x - 2
E = (3 × 7)² + 5 × 7 - 2
E = 21² + 5 × 7 - 2
E = 441 + 5 × 7 - 2
E = 441 + 35 - 2
E = 474
Si x = -3, alors E = 3x² + 5x - 2
E = (3 × (-3))² + 5 × (-3) - 2
E = (-9)² + 5 × (-3) - 2
E = 81 + 5 × (-3) - 2
E = 81 + (-15) - 2
E = 64
Exercice 6 :
Nombre de repas ≈ 1000 × 5 × 33 × 37
= 6105000
= 6,105 ×
Bonne journée :)
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Exercice 4 :
A = 2 ×
B = 7,5 ×
A × B = (2 × ) × (7,5 × ) = 15
Exercice 5 :
Si x = 5, alors E = 3x² + 5x - 2
E = (3 × 5)² + 5 × 5 - 2
E = 15² + 5 × 5 - 2
E = 225 + 5 × 5 - 2
E = 225 + 25 - 2
E = 248
Si x = 7, alors E = 3x² + 5x - 2
E = (3 × 7)² + 5 × 7 - 2
E = 21² + 5 × 7 - 2
E = 441 + 5 × 7 - 2
E = 441 + 35 - 2
E = 474
Si x = -3, alors E = 3x² + 5x - 2
E = (3 × (-3))² + 5 × (-3) - 2
E = (-9)² + 5 × (-3) - 2
E = 81 + 5 × (-3) - 2
E = 81 + (-15) - 2
E = 64
Exercice 6 :
Nombre de repas ≈ 1000 × 5 × 33 × 37
= 6105000
= 6,105 ×
Bonne journée :)