Question

РЕШУ ОГЭ ПОМОГИТЕ ПЖ​

Answer 1

Ответ:

1. -4

2. 1.5

3. 1.72

4. 1.2

Объяснение:

$2 \times ( { \frac{1}{2}) }^{2} - 9 \times \frac{1}{2 } = 2 \times \frac{1}{4} - \frac{9}{2} = \frac{1}{2} - \frac{9}{2} = - \frac{8}{2} = - 4$

$\frac{2.7}{2.9 - 1.1} = \frac{ \frac{27}{10} }{1.8} = \frac{ \frac{27}{10} }{ \frac{9}{5} } = \frac{27}{10} \times \frac{5}{9} = \frac{3}{2} = 1.5$

$\frac{11}{7} = 1 \frac{4}{7} = 1.57 \\ \frac{3}{2} = 1.5 \\ d = 1.72$

$1 - \frac{x}{2} = \frac{x}{3} \times 6 \\ 6 - 3x = 2x \\ - 5x = - 6 \\ x = \frac{6}{5} = 1.2$