Предмет: Алгебра, автор: дядяженя12

19х-11у-24=0 если х=3
3х+2у+30=0 если х = -8

Ответы

Автор ответа: Evgeny997
0
Что найти y нужно?? если y то в1) y=3 , 2) y= -3. просто подстовляем и выражаем y
Автор ответа: дядяженя12
0
Спс
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Алгебра, автор: kirboss542
Котёнок подрос и стал съедать за 5 дней столько, сколько съедал за за неделю. На сколько процентов стал есиь котенок?
И найдите остаток от деления числа 123123...123(всего 6042 цифры) на 9

Пазязя!!
6 лет назад
Предмет: Английский язык, автор: Vukku777
Часть 1
Read these abbreviations: Mr/ VIP/ OK//GB. Which of them is read as a full word?
1 Mr 2 VIP 3 GB
2. Choose the correct reply:
- What are you doing at the weekend, Kate?
- I’m driving to the mountains. Would you like to come with me and Liza?
- …
1 I’m sorry, I don’t. 2 Yes. I love to. 3 That would be nice.
3. Join the sentences using the correct variant: It was very cold/ Joe put his coat on.
1 so 2 but 3 because
4. Choose a pair of synonyms:
1 thing-object 2 huge-gorgeous 3 frightened-sudden
5. Find the correct phrase:
1 policemens’ work 2 ostriches’ eggs 3 Joe’s and Sam’s computer
6. Translate the sentence: I want to have my blood pressure tested.
1 Я хочу проверить Вам кровяное давление.
2 Я хочу, чтобы у меня проверили кровяное давление.
3 Я хочу сам проверить свое кровяное давление.
7. Complete the sentence: Several cities in the US … after Columbus, as is the Columbia River.
1 name 2 named 3 are named
8. Choose the right description of the picture:
1 The photo was taken inside the space station.
2 The photo was taken in the local library.
3 I took this photo of my relatives in front of the screen.
9. Select the word closest in meaning to the one underlined: The work was very tiring.
1 boring 2 exhausted 3 exhausting
10. Choose the variant that best completes the sentence: By the time Peter graduates from the university I … for two years.
1 will have been teaching 2 shall teach 3 have teaching
Часть 2
11. Find the odd word in the line paying attention to the vowels: blood, trouble, couple, flood, door.
1 blood 2 couple 3 door
12. Match the English idioms with their Russian equivalents:
1) a dead end а) всякая всячина
2) odds and ends б) сообразить в чем дело
3) to make both ends meet в) сводить концы с концами
4) to put two and two together г) тупик
1 1-г, 2-а, 3-в, 4-б
2 1-б, 2-а, 3-г, 4-в
3 1-а, 2-в, 3-б, 4-г
13. Find the sentence without any mistake:
1) I’ll answer the phone - it might be for me.
2) This is a very expensive car, so look it after carefully.
3) If you would know Richard, you would like him.
1 1
2 2
3 3
14. Match the verbs to the sentences:
1) receive а) … this painkiller after meal.
2) adopted б) Do you often … guests from different countries?
3) take в) Ben was … to the university.
4) admitted г) Did you … the invitation to go to the party?
5) accept д) When was the US Constitution …?
1 1-д, 2-в, 3-а, 4-б, 5-г
2 1-б, 2-д, 3-а, 4-в, 5-г
3 1-г, 2-б, 3-в, 4-а, 5-д
15. Read the text and choose the best title for it: There is a connection between the time spent online and our physical state. Some worrying things happen to your body when you’re online too much. ‘Tech neck’ is one of them. It’s that pose you see everyone making when they’re bent over their phones or computers. It leads to a very sore neck. Dry eyes and eye strain are becoming more common in young
people too. This is caused by staring too long at bright screens and not blinking.
1 Invention 2 Advice 3 Health
6 лет назад
Предмет: Алгебра, автор: mazhitovas200864
Помогите пожалуйста, очень срочно надо
4) (6 - 5x)(36 + 30x + 25x^2) = 108x - 125x^3.
6 лет назад
Предмет: Математика, автор: anti999
вырази длину в сантиметрах.                                                                                                                                                                                                                                          250мм                                                                                                                                   180мм                                                                                                                                380мм                                                                                                                                   900мм
9 лет назад
Предмет: Математика, автор: dchhklhfflf
Найдите значение выражения:
3/8*2/3*4/5
9 лет назад