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calculati b=[11,2(3)-9,(2)]x9-1/100

Răspuns :

[tex]b=[11 \frac{23-2}{90}-9 \frac{2}{9}]\cdot 9-\frac{1}{100}=[11 \frac{21}{90}-9 \frac{20}{90}]\cdot9-\frac{1}{100}=2\frac{1}{90}\cdot9-\frac{1}{100}=\\ \\\frac{181}{90}\cdot 9-\frac{1}{100}=\frac{1810}{100}-\frac{1}{100}=\frac{1809}{100}=18,09 [/tex]