Question

Помогите плз за отсос ​

Answer 1

N° 4

1) 0,5 ⋅ 74,8 ⋅ 2 = (0,5 ⋅ 2) ⋅ 74,8 = 1 • 74,8 = 74,8

2) 0,42 ⋅ 5,19 + 5,19 ⋅ 0,58 =

= 5,19 ⋅ (0,42 + 0,58) = 5,19 ⋅ 1 = 5,19

3) 62,9 ⋅ 1,8 - 62,7 ⋅ 1,8 = 1,8 ⋅ (62,9 - 62,7) = 1,8 ⋅ 0,2 = 0,36

N° 5

0,3a ⋅ 1,2 = 0,36a || 0,36 ⋅ 0,05 = 0,018

7,9x + 2,1x = 10x || 10 ⋅ 1,65 = 16,5