bonjour
1 ) 1 - 2 - 6 - 7 - 9 - 11 - 12 - 17
médiane = ( 7 + 9 ) / 2 = 8
3 825 = 3² x 5 ² x 17
plus grand nombre premier = 17
17/14 : 5/7 - 2 /5
= 17/14 x 7/5 - 2 /5
= 119/ 70 - 2/5
= 119/70 - 28/70
= 91/70 = 13/10
3.6 x 10 ⁶ : 3 x 10 ⁵
= 1.2 x 10
= 12
explications à la page suivante donc ....
= SOMME (B2 : B9 ) / 8
= 6 762 / 8 = 845.25
5/8 = 0.625 = 62.5 %
1er exercice :
1) 1 ; 2 ; 6 ; 7 ; 9 ; 11 ; 12 ; 17
la médiane est : (7+9)/2 = 8
2) 3 825 ÷ 3 = 1275
1 275 ÷ 3 = 425
425 ÷ 5 = 85
85 ÷ 5 = 17
17 ÷ 17 = 1
3) 17/14 ÷ 5/7 - 2/5 = 17/14 × 7/5 - 2/5
= 119/70 - 2/5
= 91/70
= 13/10
4) (3,6 × (10²)³) ÷ (3×10⁵) = (3,6÷3) × 10²ˣ³⁻⁵ = 1,2 × 10¹ = 12
le code est donc : 8101213
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bonjour
1 ) 1 - 2 - 6 - 7 - 9 - 11 - 12 - 17
médiane = ( 7 + 9 ) / 2 = 8
3 825 = 3² x 5 ² x 17
plus grand nombre premier = 17
17/14 : 5/7 - 2 /5
= 17/14 x 7/5 - 2 /5
= 119/ 70 - 2/5
= 119/70 - 28/70
= 91/70 = 13/10
3.6 x 10 ⁶ : 3 x 10 ⁵
= 1.2 x 10
= 12
explications à la page suivante donc ....
= SOMME (B2 : B9 ) / 8
= 6 762 / 8 = 845.25
5/8 = 0.625 = 62.5 %
Verified answer
1er exercice :
1) 1 ; 2 ; 6 ; 7 ; 9 ; 11 ; 12 ; 17
la médiane est : (7+9)/2 = 8
2) 3 825 ÷ 3 = 1275
1 275 ÷ 3 = 425
425 ÷ 5 = 85
85 ÷ 5 = 17
17 ÷ 17 = 1
3) 17/14 ÷ 5/7 - 2/5 = 17/14 × 7/5 - 2/5
= 119/70 - 2/5
= 119/70 - 28/70
= 91/70
= 13/10
4) (3,6 × (10²)³) ÷ (3×10⁵) = (3,6÷3) × 10²ˣ³⁻⁵ = 1,2 × 10¹ = 12
le code est donc : 8101213