Question

Пожалуйста можете помочь

Answer 1

Ответ:

$\frac{0.04 + 0.12 + 0.09}{0.2 - 0.3} = \frac{0.25}{ - 0.1} = - 2.5$

Answer 2

$\frac{{(0.2 + 0.3) }^{2} }{0.5(0.4 - 0.6)} = \frac{ {0.5}^{2} }{0.5(0.4 - 0.6)} = \frac{0.5}{ - 0.2} = \frac{1}{2} \div ( - \frac{1}{5} ) = - \frac{1 \times 5}{2 \times 1} = - 2.5$