bjr
1 CD = 700 Mo
1 clé = 32 Go = 32 000 Mo
32 000 / 700 = 45,71 => il faudra 46 CD pour stocker autant qu'une clé USD
selon pythagore :
diagonale² = 10² + 20² = 500
=> diagonale = √500 = 22,36 cm donc environ 22 cm
2x + 3 = 7x - 4
2x - 7x = -4 - 3
-5x = -7
x = 7/5 = 1,4
882/1134 = 98x9/126x9 = 98/126 = 49x2/63x2 = 49/63 = 7x7/7x9 = 7/9
f(x) = 3x + 4
B2=3*B1+4
