Réponse :
Bonsoir
Explications étape par étape
1) 0.005 8 = 5.8 × 10^-3
2) [(10^2)^4 × 10^6]/ 10^-4
= (10^8 × 10^6)/10^-4
= (10^(8+6))/10^-4
= 10^14/10^-4
= 10^(14-(-4))
= 10^18
3)
1 Go = 10^9 octets
60Go = 60 × 10^9 octets
1To = 10^12 octets
1.5To = 1.5 × 10^12 octets
1 dossier -------> 60 × 10^9 octets
? -------> 1.5 × 10^12 octets
(1.5×10^12)/(60 × 10^9)
= 0.025 × (10^12/10^9)
= 0.025 × 10^(12-9)
= 0.025 × 10^3
= 25 dossiers
