Question

Сравните
3,4_3,389
0,6085_0,61
0.986_0,9779
1_0,9999

Решите уравнение
(21-х)+2,9=6,4

Answer 1

> < > >
21+2.9-х=6.4
23.9-х=6.4
-х=6.4-23.9
-х=-17.5
х=17.5