Построить параболу [tex]y= -x^{2} +x+6[/tex] - №22469616

Построить параболу
[tex]y= -x^{2} +x+6[/tex]
- Предмет:
  Математика
- Автор:
  kolton
- 5 лет назад

Ответы 1

Нули функции 3 и -2Вершина (-0,5, 6,25)
- Автор:
  turbokdcv
- 5 лет назад
- 0
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а) Запиши двузначные числа, при умножении единиц которых на 3 применяется равенство 4·3=12.
б) Запиши двузначные числа при делении единиц которых на 3 применяется равенство 12:3=4
- Предмет:
  Математика
- Автор:
  armani
- 5 лет назад
- Ответов:
  
  1
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Television is doing a great harm. It is monster." How often we hear statements like this! Television hasn't been with us all the time, but we are already beginning to forget what the world was like without it. What did we use to do before there was television? First of all, we never found it difficult to spend our free time. We used to enjoy civilized pleasures. For instance,we used to have hobbies, we used to entertain our friends and be entertained by them, we used to go outside for our amusements to theatres, cinemas, restaurants and sporting events. We even used to books and listen to music. All that belongs to the past. Now all our free time is regulated by the " magic box". We rush home to be in time for this or that programme. A sandwich and a glass of tea will do - anything if only it doesn't interfere with the programme. Whole generations are growing up addicted to the telly. Food is left uneaten, homework undone and sleep is lost. It is now standard practice for mother to keep the children quiet by putting them in the living - room with the telly alone: It doesn't matter what the children will watch - what so long as they are quiet. Television encourages passive enjoyment. It is so easy to sit in our armchairs watching others working. Little by little, television cuts us off from the real world. We get so lazy, we choose to spend a fine day in semi -darkness, glued to our sets, rather than go out into the world itself. Television is a splendid means of communication, but it prevents us from communicating with each other. We only understand it when we spend a holiday by the sea or in the mountains, far away from civilization, in quiet, natural surroundings.
- Предмет:
  Английский язык
- Автор:
  meadow
- 5 лет назад
- Ответов:
  
  1
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Примените формулу"разность квадратов"при решении неполного квадратного уравнения:
а) 16/17х^2-1/12=0
б) 3х^2-7=0.
- Предмет:
  Алгебра
- Автор:
  bronson
- 5 лет назад
- Ответов:
  
  0
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Переведите письменно текст:

Roger and Betsy are the Tennis Couple

Roger and Betsy are members of the Newton tennis club and every year they take part in the tournament. The Newton tournament is held every year, and the competitors come from every part of the country to participate. The club has eight hard courts and six green courts. During the season they are always crowded with players.
This year Roger and Betsy entered for the mixed doubles competition. They were surprised when they reached the doubles final. After the match they understood why they had won. They are practicing together for three months and the practice made their play different. The couple they had defeated in the semifinal had played together only three times before.
On the last day of the tournament Roger and Betsy were declared winners of the competition. Their opponents had started well, but after a long struggle Roger and Betsy were able to defeat the other pair.
Half an hour after the match was over and after the participants had bathed and changed their clothes, Mr. Kelly, the President of the club, presented the prizes. The winners of the singles and doubles events received silver cups and, in addition, each winner got a new tennis racket.
- Предмет:
  Английский язык
- Автор:
  kaiaware
- 5 лет назад
- Ответов:
  
  1
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