Respuesta:
ayuda, por favor, doy corona
Explicación paso a paso:
[tex]9\cdot 8\div \left(-6\right)\\=72\div \left(-6\right)\\=-12[/tex]
Negativo
[tex]\left(-2.4\right)\cdot \left(\frac{-11.2}{7}\right)\\\\=-2.4\left(-\frac{11.2}{7}\right)\\\\=\frac{11.2\cdot \:2.4}{7}\\\\=\frac{26.88}{7}\\\\=3.84[/tex]
Positivo
[tex]-\frac{8}{5}+\frac{3}{7}\cdot \frac{1}{2}\\\\=-\frac{112}{70}+\frac{15}{70}\\\\=\frac{-97}{70}\\\\=-\frac{97}{70}[/tex]
Negativo
[tex]-16\div \left(-9.6+\left(-3\right)\right)\\\\=\frac{-16}{-9.6-3}\\\\=\frac{-16}{-\left(9.6+3\right)}\\\\=\frac{16}{9.6+3}=\frac{16}{12.6}\\\\=1.26984\dots[/tex]
Positivo
[tex]-\frac{12}{3}+\left(\frac{4}{5}\cdot \frac{-1}{4}\right)\\\\=-4+\left(\frac{4}{5}\cdot \frac{-1}{4}\right)\\\\=-4+\left(\frac{4}{5}-\frac{1}{4}\right)\\\\=-4-\frac{1}{5}\\\\=-\frac{21}{5}[/tex]
Negativo
[tex]-0.8\cdot \frac{4}{3}\div 1.35\\\\=-0.8\times \frac{4}{3}\div \frac{1.35}{1}\\\\=-0.8\times \frac{4\times \:1}{3\times \:1.35}\\\\=-0.8\times \:0.98765\dots \\=-0.79012\dots[/tex]
Negativo
