Предмет: Математика, автор: daniilnazarov2008

3.Применяя свойства сложения и умножения рациональных чисел, вычислите:
-5,2 (-1,41) +15,2 (-1,41)
пжжжжжж срочноо!!!!!

Ответы

Автор ответа: kidirbaev
10

Ответ:

(-1.41)(-5.2+15,2)=(-1.41)×10=-14.1

elenaeftifeeva4: можно с объяснением
kidirbaev: два отрицательных знака при умножении будут положительными
elenaeftifeeva4: спасибо большое
tillebaldievazanara: это правильно ?
elenaeftifeeva4: кажись да
elenaeftifeeva4: есть еще другие ответ но они одинаковые с ответами
elenaeftifeeva4: значит правильно
tillebaldievazanara: ааа спасибо
bichgirl37: спасибки за помощь
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