Verified answer

Ответ:

6) 3

7) -1/4

8) 2.2/7

Пошаговое объяснение:

[tex]10 - \frac{448}{ {3}^{4} } \times \frac{81}{ {4}^{3} } = 10 - \frac{448}{81} \times \frac{81}{64} = 10 - 7 = 3 [/tex]

[tex] - \frac{1}{8} - \frac{ {5}^{3} }{216} \div \frac{1000}{ {6}^{3} } = - \frac{1}{8} - \frac{125}{216} \div \frac{1000}{216} = - \frac{1}{8} - \frac{125}{216} \times \frac{216}{1000} = - \frac{1}{8} - \frac{1}{8} = - \frac{2}{8} = - \frac{1}{4} [/tex]

[tex]1 \frac{2}{7} + \frac{ {2}^{10} }{ {4}^{4} } \times \frac{ {16}^{2} }{ {4}^{5} } = 1 \frac{2}{7} + \frac{1024}{256} \times \frac{256}{1024} = 1 \frac{2}{7} + 1 = 2 \frac{2}{7} [/tex]