Предмет: Математика, автор: vina109

обчисли вираз 1)5,7+1,2= 2)4-7= 3)–12•(–4)=. 4)–20:6= Помогите срочно даю 50 балов.

Ответы

Автор ответа: turkmenistan225

$1)5.7 + 1.2 = 6.9 \\ 2)4 - 7 = - 3 \\ 3) - 12 \times ( - 4) = 48 \\ 4) - 20 \div 6 = - 3.33333$

Автор ответа: iramazurk

Пошаговое объяснение:

1) 5,7 + 1,2 = 6,9

2) 4 - 7 = -3

3) -12 * (-4) = 48

4) -20 : 6 = -20/6 = -10/3 = -3. 1/3

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