Question

Здравствуйте! Помогите пожалуйста вычислить....

Answer 1

Ответ:

1) -3

2) 2

3) 132

4) 0,875

Пошаговое объяснение:

1)

$(2 {}^{4} \times 3 {}^{3} \div 54 + 7 {}^{2} ) \div 3 - \\ - 4 {}^{2} = \\ = (16 \times 27 \div 54 + 49) \div 3 - \\ - 16 = \\ = (8 + 49) \div 3 - 16 = \\ = 13 - 16 = - 3$

2)

$(2 {}^{5} + 19) \div 3 - 5 {}^{2} \times 3 {}^{3} \div \\ \div 45 = \\ = (32 + 19) \div 3 - 25 \times 27 \div 45 = \\ = 51 \div 3 - 25 \times 27 \div 45 = \\ = 17 - 15 = 2$

3)

$11 {}^{2} - (5 {}^{2} - 6 {}^{2} \times 3 {}^{3} \div 9 {}^{2} ) = \\ = 121 - (25 - 36 \times 81 \div 81) = \\ = 121 - (25 - 36) = \\ = 121 - ( - 11) = \\ = 121 + 11 = 132$

4)

$2 {}^{5} \times 7 {}^{2} \div 56 - (10 {}^{2} - \\ - 79) = \\ = 25 \times 49 \div 56 - (100 - 79) = \\ = 21.875 - (100 - 79) = \\ = 21.875 - 21 = \\ = 0.875$