Ответ: смотри решение ниже
-5,84 + 9,77 + (-6,77) + 5,84 = (-5,84 + 5,84) + (9,77 - 6,77) = 0 + 3 = 3
-2,23 + 6,14 + 8,23 + (-10,14) = (-2,23 + 8,23) + (6,14 - 10,14) = 6 - 4 = 2
48 + (-62) + 37 + (-28) + (-3) = (48 + 37) + (-62 - 28 - 3) = 85 - 93 = -8
-2,43 + 3,51 + (-4,57) + 1,68 + 0,22 = (-2,43 - 4,57) + (3,51 + 1,68 + 0,22) = -7 + 5,41 = -1,59
14 + (- 37/33) + 25/65 + 24/65 = 14 - 37/33 + (25/65 + 24/65) = 14 - 37/33 + 49/65 = 14 - 37/33 + 49/65 = 14 - 37/33 + 7/5 = (14/1 + 7/5) - 37/33 = 77/5 - 37/33 = 2541/165 - 185/165 = 2356/165
-3,6 + d + 6,51 + (-2,4) + c + (-4,51) = c + d + (-3,6 + 6,51 - 2,4 - 4,51) = c + d - 4
Подставим значения c = 12,4, d = -7.6:
12,4 + (-7,6) - 4 = 12,4 - 7,6 - 4 = 4,8 - 4 = 0,8
-8 ⋅ 37 ⋅ 5 = -8 ⋅ 5 ⋅ 37 = -40 ⋅ 37 = -1480
-25 ⋅ 23 ⋅ (-0,4) = -25 ⋅ (-0,4) ⋅ 23 = 10 ⋅ 23 = 230
0,125 ⋅ (-8) ⋅ (-0,25) ⋅ (-4) = 0,125 ⋅ (-8) ⋅ (-0,25) ⋅ (-4) = -1 ⋅ 1 = 1
-8,47 ⋅ 5 ⋅ (-200) ⋅ (-0,001) = -8,47 ⋅ 5 ⋅ 0,2 = -8,47
\[\frac{5}{9} \cdot (-\frac{3}{14}) \cdot (-1 \frac{4}{5}) \cdot (-28) = \frac{5}{9} \cdot (-\frac{3}{14}) \cdot (-\frac{9}{5}) \cdot (-28) = -\frac{5 \cdot 3 \cdot 9 \cdot 28}{9 \cdot 14 \cdot 5} = -6\]
\[-\frac{7}{11} \cdot (-\frac{2}{13}) \cdot (\frac{11}{21}) \cdot (-26) = -\frac{7 \cdot 2 \cdot 11 \cdot 26}{11 \cdot 13 \cdot 21} = -\frac{4}{3}\]
1,3 ⋅ (- 16/21) + (- 16/21) ⋅ 0,8 = - 16/21 ⋅ (1,3 + 0,8) = - 16/21 ⋅ 2,1 = - 16/21 ⋅ 21/10 = - 16/10 = -1,6
(7/18 - 5/24) ⋅ (-72) = 7/18 ⋅ (-72) - 5/24 ⋅ (-72) = -28 + 15 = -13
(x + 6)(x - 3) = 0
x + 6 = 0 или x - 3 = 0
x₁ = -6, x₂ = 3
x(x + 3,5)(4,8 – x) = 0
x = 0 или x + 3,5 = 0 или 4,8 - x = 0
x₁ = 0, x₂ = -3,5, x₃ = 4,8
Ответ: 1) 3; 2) 2; 3) 2356/165; 4) 0,8; 5) -1480; 6) 230; 7) 1; 8) -8,47; 9) -6; 10) -4/3; 11) -1,6; 12) -13; 13) x₁ = -6, x₂ = 3; 14) x₁ = 0, x₂ = -3,5, x₃ = 4,8
Цифровой атлет: Минус 15 минут нудной домашки. Потрать их на катку или новый рилс
Не будь NPC — кинь ссылку бро, который всё еще тупит над этой задачей