Langage mathématique de base
Documents Gratuits : Langage mathématique de base. Recherche parmi 298 000+ dissertationsPar Jdontcha • 7 Décembre 2013 • 1 445 Mots (6 Pages) • 1 656 Vues
Module 1 - Langage mathématique de base
Travail noté 1
RÉPONSES:
QUESTION 1
a) 5+10-3 x 2 6
= 5+10 - ( 3 x 2) 6
= 5+10- (6 6)
= 5+10-1
=15-1
=14
b) - 25- 5 x 3 + 8 2
= -25 - (5 x 3) +(8 2)
= -25 - (15) + (8 2)
= -25 - 15 + 4
= - 40 + 4
= -36
c) (3+7) x 2 + (15+3) x 4
= 10 x 2 +18 x 4
= 20 + 72
= 92
d) 68 + 32 (-8)
= 68 + ( - 4)
= 64
e) 48+ ( -11 + 3) x 2 + ( 4+24) 7
= 48+ (-8) x 2 +( 28) 7 )
= 48 + ( -16 + 4 )
= 48 + ( -12)
= 36
P 1
QUESTION 2
a) 114 000 + 26 000 = 140 000
40 000 40 000 40 000
26 000+ 1-48% 26 000 + (1-0,48) = 26 000 + 0.52
40 000 0,52 = 76923, 076
26 000 + 76923,076 = 102923, 08 140 000 = 140 000 102923,08 1,3602391
102923,08
b) -45 - ( -5) + 5 x 21 = - 45 - ( -5) + ( 5x 21) = - 40 + 105 = 65 = 65 - 13 -5
- 6 + 49 (-7) -6 + ( 49 (-7) -6 + ( -7) -13
c) 150 000 = 150 000
1 - 3 1- ( 3 = 3 4 = 0,75 ) = 150 000 = 150 000 0,25 600 000
4 4 0,25
d) 80 000 ( 2 - 1,60) = 80 000 ( 0. 4) = 80 000 x 0,4 = 32 000
80 000 ( 2 - 1, 60) - 12 000 80 000 ( 0,4) - 12 000 80 000 x 0,4 32 000 - 12 000
= 32 000 = 32 = 32 20 1,6
20 000 20
e) ( 20 000 x 0,50 ) + ( 10 000 x 0,50 ) x 6,145 - ( 70 000 x 0,70) + ( 80 000 x 0,70)
= ( 10 000 + 5 000 ) x 6,145 - ( 49 000 + 56 000 )
= 15 000 x 6,145 - 105 000
= 92 175 ,000 - 105 000 = -12 825
QUESTION 3
2
a) ( -5) = -5 x -5 = 25
3
2 2 x 3 6
b) ( 5 ) = 5 = 5 = 5 x 5 x 5 x5 x 5 x 5 = 15 625
3 -2 -2
c) 5 x 5 = 5 x 5 x 5 = 125 x 5 = 1 = 1 = 1 = 125 x 1 = 125 5
2 5 x 5 25 25 25
5
P 2
3
d) 6 = 6 x 6 x 6 = 216 = 27
4
2 2 x 2 x 2 x 2 16 2
-3
e) 9 = 1 = 1 = 1 = 1 = 1 1
2 3+2 2 3 2 2 5
9 9 9 9x9x9 729 9 59049
QUESTION 4
3 3 3
a) 16 = 4 3 = ( 4 ) = 4 = 4 x 4 x 4 64
4 16 16
5
-2
b) 4 = 1 = 1
= 1 = 1 = 1 1
5
5
4 2 24 24 x 4 x 4 x 4 x 4 21024 2 32 x 32 32
3
81
4 3 3
c) 16 = 81 4 = 481 = 4 81 x 81 x 81 = 4 531441 27
3 3
4 4 16 4 16 x 16 x 16 4 4096 8
16
d) 3 27 = 3 27 = 3 3 x 3 x 3 = 3
125 3 125 3 5 x 5 x 5 5
e) 32 x 2 = 32 x 2 + 64 8
P 3
QUESTION 5
Revenu 60 000 $
Nouveau revenu 63 000 $
Quel %
...