1/x + 1/x+6 = 1/4 помогите - №24810414

1/x + 1/x+6 = 1/4 помогите
- Предмет:
  Математика
- Автор:
  jayleencyn9
- 6 лет назад

Ответы 1

1/x +1/(x+6) = 1/4 /.4x(x+6)4(x+6) +4x = x(x+6)4x+24+4x=x²+6x8x+24=x²+6xx²+6x-8x-24=0x²-2x-24=0, D=4+96=100, √D=√100=10x1=(2+10)/2=12/2=6x2=(2-10)/2=-8/2=-4(x≠0,x≠-6)
- Автор:
  carmelohaas
- 6 лет назад
- 0
Добавить свой ответ

Еще вопросы

укажите словосочетание со связью управлениеа)скакатьгалопом б)скакать степью в)скакать быстро г)скакать ночью д)скакать верхом
- Предмет:
  Русский язык
- Автор:
  desiree4jab
- 6 лет назад
- Ответов:
  
  7
- Смотреть
В комнате имеется три окна Какое из них нужно открыть чтобы комната охлаждалась позже. К верхняя L средняя М нижняя
А)К
Б)L
С)М
Д) одновременно охлаждается
- Предмет:
  Физика
- Автор:
  norbertotobl
- 6 лет назад
- Ответов:
  
  1
- Смотреть
ДАЮ 20 баллов !1)Решить уравнение (x-4)(x^4-17x^2+16)=0
- Предмет:
  Алгебра
- Автор:
  zechariahr0lg
- 6 лет назад
- Ответов:
  
  6
- Смотреть
1)Match the words in columns A and B and use the word combinations in their right forms to complete the sentences below.

A

arrangedseconddistantmarriagesinglegenerationchurchnewlycheerfulfirst-born

B

contractgapmarriedchildmarriageatmosphererelativeweddingcousinparent

Not all people choose to have a __________________________________, some just register their marriage.Signing a _______________________________ was their common decision; both Ron and Becky believe it to be necessary.Charlie was their ___________________________________; later a girl and two more boys were born to them.In some countries of the world ___________________________ are traditional and even preferable to marriages of love.The _______________________________ often causes problems between the older and younger people.Pauline is my ___________________________; we don’t see much of each other.After the divorce you begin to understand how difficult it is to be a ________________________________.A ___________________________ in the Wilsons’ family has always attracted friends and relatives._________________________________ couples often go to Venice, one of the most romantic cities of the world.A child of the cousin of one of your parents is called a _________________________________.
2)

Complete the text with articles where necessary.

_________ Ireland

_________ Ireland is one of the two large islands of _________ British Isles. It is surrounded on the north, west and south by _________ Atlantic Ocean. In the east it is separated from _________ Great Britain by _________ Irish Sea, which narrows to _________ North Channel in the North and St. George’s Channel in the South. Irish mountains are low; the highest, _________ Carrantuohill, is only 3414 feet high. The most important river is _________ Shannon. There are many small islands in it, _________ Lough Corrib and _________ Lough Mask are two of the largest.

Most of the island is occupied by _________ Irish Republic. The capital of the country is _________ Dublin situated on the banks of _________ Liffey. _________ Dublin is an attractive city, with wide streets and squares. The city spreads out in all directions, even to the northernmost foothills of _________ Wicklow Mountains. _________ Dublin is the home of the oldest university in _________ Ireland, _________ Trinity College, founded in 1591. _________ National University of _________ Ireland is also located in _________ Dublin, as are important libraries, galleries, museums and theatres like _________ Irish Literary Theatre or _________ Abbey Theatre.

3)

. Insert the necessary prepositions to make these sentences complete.

Tom, please stop fidgeting and please concentrate _________ the work.You know, you can always complain _________ the Head Manager if something goes wrong.I wonder if Sally has apologised _________ Mrs Smith for using her money.Their future depends _________ how well they do in these exams.Little Alice loves sweets. She simply lives _________ them.
- Предмет:
  Английский язык
- Автор:
  ayana
- 6 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years