Question

Дам 60 баллов, вопросы на фотографиях

Answer 1

Ответ:

#1)

Строка a (-36, 25, 16, 0)

Строка b (6, -5, 4, -8)

Строка a : b (-6, -5, 4, 0)

#2)

a) -24 ÷ 3 = -8

b) -11,34 ÷ 42 = -0,27

c)

$- 3 \div 12 = - \frac{3}{12} = - \frac{1}{4} = - 0.25$

d) -0,72 ÷ (-0,9) = 0,8

e)

$- \frac{6}{35} \div \frac{12}{25} = - \frac{6}{35} \times \frac{25}{12} = - \frac{1}{7} \times \frac{5}{2} = - \frac{5}{14}$

f)

$- 1 \frac{5}{9} \div 2 \frac{13}{18} = - \frac{14}{9} \div \frac{49}{18} = - \frac{14}{9} \times \frac{18}{49} = - \frac{2}{1} \times \frac{2}{7} = - \frac{4}{7}$

#3)

a) 9x = -72

x = -72 ÷ 9

x = -8

b) -2,4x = -8

x = -2,4 ÷ (-8)

x = 0,3

c) -21x = -48

x = -48 ÷ (-21)

x = 2

d)