Question

1/2 . √1,69 + 2/3 . √0,81

Precisa da conta

URGENTE!!!

Answer 1

Boa noite!!!

$\frac{1}{2} \times \sqrt{1.69} + \frac{2}{3} \times \sqrt{0.81} \\ \frac{1}{2} \times \sqrt{ \frac{169}{100} } + \frac{2}{3} \times \sqrt{ \frac{81}{100} } \\ \frac{1}{2} \times \frac{13}{10} + \frac{2}{3} \times \frac{9}{10} \\ \frac{1}{2} \times \frac{13}{10} + \frac{3}{5} \\ \frac{13}{20} + \frac{3}{5} = \frac{13 + 12}{20} = \frac{ {25}^{ \div 5} }{ {20}^{ \div 5} } = \frac{5}{4}$

Espero ter te ajudado!