Question

va rog ajutatima la matematică urgent ​

Answer 1

$ex.1 \\ (2 + 3) \times 10 -1 0 \div 5 \\ 5 \times 10 - 2 \\ 50 - 2 \\ 48$

$ex.2 \\ \frac{x + 2}{12} = \frac{7}{6} \\ 6 \times (x + 2) = 84 \\ x + 2 = 14 \\ x = 14 - 2 \\ x = 12$

$ex.3 \\ 6$

$ex.4 \\ d = l \sqrt{2} = 5 \sqrt{2} cm$

$ex.5 \\ 45°$