970 решите системы неравенств.. Created by Kazakhstan222. matematika-ru

Ответ: Новые вопросы в Математика Нецелые числа вводите в виде десятичных дробей. - 2.7 * (1.2) + 3.5 * (2.8) Помогите номер 4 пожалуйста Найдите значение выражение35(a2b3)4 дробь a8b13 при a= -3 и b 5 дробь 7 Начертите треугольник и проведите через каждую вершину прямую, параллельную противоположной стороне. РЕШИТЕ ЗАДАЧУ ПЖ!! на 4 веточках сидит 17 синиц. Сколько синиц сидит на 16 веточках? дам 30 баллов найдите значение выражение35(a2b3)4 дробь a8b13 при a= -3 и b 5 дробь 7 320санының 30% тап помогите Решить задачу: НЕ СЛОЖНАЯ ЗАДАЧА Вкладчик положил в банк 16000 рублей. Банк ежемесячно начисляет доход - 4% от суммы первоначального вклада. Какой дох … од получит вкладчик за пол года? Найдите неизвестное x если: 1) х увеличили на 13 единиц, разделили результат на 4 и получи- ли 9; 2) 64 разделили на разность чиселхи 18 и получили 16 … ; 3) Сумму чисел хи 25 разделил на 7, вычли из частного 8 и по- лучили 3; 4) Разность числа 105 их разделили на 4, прибавили к частному 13 и получили 35. с меня подписка ВА Найди, сколько процентов площади фигуры закрашено на рисунке. BIUM Land. Помогите пожалуйста 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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970 решите системы неравенств...

Kazakhstan222 @Kazakhstan222

April 2022 1 66 Report

970 решите системы неравенств.

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Ответ:

$\displaystyle \tt 1) \; \; \left \{ {{3(x-1)2x+3}} \right. \Leftrightarrow \left \{ {{3x-32x+3}} \right. \Leftrightarrow \left \{ {{2x-12}} \right. \Leftrightarrow \\\\\Leftrightarrow \left \{ {{x-4}} \right. \Leftrightarrow x \in (-4; 0);$

$\displaystyle \tt 2) \; \; \left \{ {{2(y-2)\geq 3y+1} \atop {5(y+1)\leq 4y+3}} \right. \Leftrightarrow \left \{ {{2y-4 \geq 3y+1} \atop {5y+5 \leq 4y+3}} \right. \Leftrightarrow \left \{ {{-y \geq 5} \atop {y \leq -2}} \right. \Leftrightarrow \\\\\Leftrightarrow \left \{ {{y \leq -5} \atop {y \leq -2}} \right. \Leftrightarrow y \in (-\infty; -5];$

$\displaystyle \tt 3) \; \; \left \{ {{3(2y-3)\leq y+6} \atop {4(3y+1) \geq 5y-10}} \right. \Leftrightarrow \left \{ {{6y-9\leq y+6} \atop {12y+4 \geq 5y-10}} \right. \Leftrightarrow \left \{ {{5y\leq 15} \atop {7y \geq -14}} \right. \Leftrightarrow \\\\\Leftrightarrow \left \{ {{y\leq 3} \atop {y \geq -2}} \right. \Leftrightarrow y \in [-2; 3];$