Question

3. Решите систему уравнений графически: {3x + y = 8 2x-y = 2 Посмотреть ответы Это все не графически. Я не нашла "{" по больше ??? Я не говорю про {. Я говорю, о решении... Это метод подстановки. svetlanakotik2020 svetlanakotik2020 {y=8-3x2x-y=22x-8+3x=2x=2y=8-3*2=2 alpha05082006 alpha05082006 Ответ:A ( 2 ; 2 )Объяснение:{3x + y = 8 2x-y = 2{3x + y = 8 2x-y = 2                                                                       {3x + y = 8 -y=2-2x{3x + y = 8 y=2x-2{3x+2x-2=8y=2x-2{5x=10y=2x-2{x=2y=2x-2{x=2y=2*2-2Итог, x = 2             y=2*2-2=4-2=2 Новые вопросы в Алгебра 2. Өрнекті ықшамдаңыз: 3. Екi планетаның ара қашықтықтығы 2054000000000 м. а) Берілген қашықтықты метрмен стандарт түрде жазыңыз. b) Метрмен стандарт … турде жазылған қашықтықтың мәндi бөлiгi мен ретiн жазып көрсетіңіз. с) Метрмен стандарты турде жазылған қашықтықты км-ге айналдырып жазыныз. d) Бiр планетадан екiншiсiне кунсәулесi қанша секундта жететіндігін табыңыз (жарык жылдамдығы 3-108м/с). 8n5m3 2m-3,​ ПОМОГИТЕ,СРОЧНООО!!!​ изобразите штриховкой на координатной плоскости множество точек заданных системой неравенствтолько 2 и 4!!!!​ 7.7. Решите неравенство: 17'x-2 x &gt; 24; 3) 7,25+2x&gt;5,125-5-¹x; Q TT 2) 3,125 + x &lt; 5,125 - 4-x; (4)12,5x-5,125​&lt;2-³-4-¹х 4. Координаты каких из точек являются решением неравенства y &lt; 12 - x2 A (-1; 10); B (3; 7); C (-5; 0); D (-3; -4).​ Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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Answer 1

Извините, но ваш вопрос не очень ясен. Похоже, вы хотите получить помощь по решению системы уравнений и неравенств, а также понять, как изобразить множество точек на координатной плоскости. Но ваши запросы немного смешаны и немного неясны.

Если вы хотите решить систему уравнений, вы можете использовать метод подстановки или метод исключения. Для системы уравнений {3x + y = 8, 2x - y = 2}, вы можете решить ее следующим образом:

1. Из первого уравнения выразите y через x: y = 8 - 3x. 2. Подставьте y в второе уравнение: 2x - (8 - 3x) = 2. 3. Упростите уравнение и решите его относительно x: 5x = 10, x = 2. 4. Подставьте x в первое уравнение, чтобы найти y: y = 8 - 3*2 = 2.

Таким образом, решением данной системы уравнений является точка (2, 2).

Если вы хотите изобразить множество точек на координатной плоскости, вы можете использовать любой графический калькулятор или программное обеспечение для этого. Вы просто вводите координаты точек и программа рисует их для вас.

Если вы хотите решить неравенство, вы можете использовать аналогичные методы, как при решении уравнений, но вместо равенства вы будете использовать неравенство. Например, для неравенства 17'x - 2x > 24, вы можете решить его следующим образом:

1. Выразите x через 'x: x = 2. 2. Подставьте x в неравенство: 17'x - 2*2 > 24, 34' > 24. 3. Упростите неравенство: 34' > 24.

Таким образом, решением данного неравенства является множество всех 'x, больших 2.

Если вы хотите найти координаты точек, которые удовлетворяют неравенству, вы можете подставить каждую точку в неравенство и проверить, удовлетворяет ли она неравенству. Например, для точек A(-1, 10), B(3, 7), C(-5, 0), D(-3, -4) и неравенства y < 12 - x^2, вы можете проверить каждую точку следующим образом:

1. Для точки A подставьте координаты в неравенство: -1 < 12 - (-1)^2, -1 < 12 - 1, -1 < 11, что верно. 2. Повторите этот процесс для каждой точки.

Надеюсь, это поможет! Если у вас есть дополнительные вопросы, не стесняйтесь задавать их.