Resposta:
a)[tex]\frac{5}{13}[/tex]
b)[tex]\frac{20}{3}[/tex]
c)[tex]-0,084[/tex]
d)[tex]\frac{\sqrt{3} }{2}-\frac{3}{4}[/tex]
e)[tex]\frac{64,75}{63}[/tex]
f)[tex]\frac{13}{18}[/tex]
Explicação passo a passo:
[tex]a)\\ \frac{\sqrt[]{4} +\sqrt[]{9} }{\sqrt[]{16} +\sqrt[]{81} } \\\\\frac{{2+3} }{4+9}\\\frac{5}{13}[/tex]
[tex]b)\\ \frac{\sqrt{0,04} }{\sqrt{0,0009} }\\\\\frac{0,2}{0,03} \\\frac{2*10^-1}{3*10^-2} \\\frac{2*10^-1+10^2}{3} \\\frac{2*10}{3} \\\frac{20}{3} \\[/tex]
[tex]c)\\\sqrt{0,09}-3*0,2*0.8^2 }{} \\0,3-0,6*0,64\\0,3-0,384\\-0,084[/tex]
[tex]d) \\\sqrt{\frac{3}{4} }-\sqrt{\frac{9}{16} }\\\frac{\sqrt{3} }{2}-\frac{3}{4}[/tex]
[tex]e)\\0,777...+\frac{1}{4} \\\frac{7}{9}+\frac{1}{4} \\\\MMC \\7 , 9 ] 3\\ 7,3 ]3\\7,1]7\\1,1] 63\\\frac{49+15,75}{63} \\\\\frac{64,75}{63} \\\\[/tex]
[tex]f)\\0,222...+\frac{\frac{1}{3} }{\frac{2}{3} } \\\frac{2}{9} +\frac{\frac{1}{3} }{\frac{2}{3} } \\\frac{2}{9}+\frac{1}{2} \\\\MMC\\2, 9]2\\1,9]3\\1,3]3\\1,1]18\\\\\frac{4+9}{18} \\\frac{13}{18}[/tex]
Eu posso estar terrivelmente enganado, sua base é bem confusa
Se te ajudei, marque com melhor resposta, por favor.
