Question

1,55.(-1,5) - 1,55.0,3 2 1,5 + 0,3(-21) 3.
Тезззз 100 балл берем
Ну пжжж пжжжжж​

Answer 1

$... = \frac{ - 1.55 \times 1.5 - 1.55 \times 0.3}{ \frac{3}{2} \div \frac{3}{10} \times ( - \frac{5}{2} )} = \frac{1.55( - 1.5 - 0.3)}{ \frac{3}{2} \times \frac{10}{3} \times ( - \frac{5}{2}) } = \frac{1.55 \times ( - 1.8)}{5 \times ( - \frac{5}{2}) } = \frac{ - 2.79}{ - \frac{25}{2} } = 2.79 \div 12.5 = 0.2232$