Odpowiedź:
3,49
Szczegółowe wyjaśnienie:
[tex]\frac{7}{8} * \frac{44}{10} - (\frac{6}{10})^2 =\\\\=\frac{7*44}{8*10} - \frac{36}{100} = \frac{308}{80} -\frac{36}{100} = \\\\= \frac{3080 - 288}{800} = \frac{2792}{800} = 3\frac{392}{800} = 3\frac{8*49}{8*100} = \\\\ = 3\frac{49}{100}=3,49[/tex]