Предмет: Математика, автор: Аноним

Раскройте скобки и упростите выражение:
1)3(а-д)-2(а+д)
2)4(х+у)+5(2х-у)
3)2,4(с-3д)-1,3(2с-д)
4)-3/4(1/3т+п)-1/4(3т+п)

Ответы

Автор ответа: 1asasas
0
1)  = 3а-3д-2а-2д=-4д
2) =4х+4у+10х-5у=14х-у
3) = 2,4с-7,2д-2,6с+1,3д=-0,2с-5,9д
4) = -1/4т-3/4п-3/4т-1/4п=-4/4т-4/4п=-т-п
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Алгебра, автор: zavollgskay
Здравствуйте, помогите пожалуйста, нужно найти значения фгуеций в точках
6 лет назад
Предмет: Английский язык, автор: sharifik87
@ 1.
The capital of the US is:
$ A) California;
$ B) Washington DC;
$ C) Washington;
$ D) New York;
$ E) Oklahoma;
@ 2.
The UK comprises four countries these are:
$ A) England, Scotland, Oxford, Birmingham;
$ B) England, Edinburgh, Oxford, Wales;
$ C) England, Scotland, Wales, Northern Ireland;
$ D) England, Scotland, Wales, North Ireland;
$E) India, Pakistan, Washington;
@ 3.
The US consists of:
$ A) 55 states;
$ B) 50 states;
$ C) 52 states;
$ D) 51 states;
$ E) 49 states;
@ 4.
The capital of the UK is:
$ A) England;
$ B) Scotland;
$ C) London;
$ D) Wales;
$ E) Edinburgh;
@ 5.
The longest river in the United Kingdom is:
$А) the Thames;
$B) the Clyde;
$C) the Trent;
$D) The Hudson;
$E) The Severn;
@ 6.
The capital of Northern Island is:
$A) Belfast;
$B) Dublin;
$C) Edinburgh;
$D) Oxford;
$E) Cambridge;
@ 7
The capital of Wales is:
$A) Aberystwyth;
$B) Cardiff;
$C) New Jersey;
$D) Toronto;
$E) London;
@8
Which of the University considers to be the oldest:
$A) Cambridge University;
$B) Metropolitan University;
$C) Oxford cercus University;
$D) Oxford University;
$E) Harvard University;
@ 9.
Which of these writers are American:
$A) Mark Twain, O. Henry, E. Hemingway;
$B) Mark Twain, O. Henry, William Shakespeare;
$C) Sacha Baron Cohen, Julie Andrews, E. Hemingway;
$D) E. Hemingway, Charles Dickens, Agatha Christie;
$E) Mark Twain, Agatha Christie, William Shakespeare;
@ 10.
Which of these writers are British:
$A) Sacha Baron Cohen, Julie Andrews, Agatha Christie;
$B) Mark Twain, O. Henry, William Shakespeare;
$C) Sacha Baron Cohen, Julie Andrews, E. Hemingway;
$D) E. Hemingway, Charles Dickens, Agatha Christie;
$E) Mark Twain, Agatha Christie, William Shakespeare;
@ 11.
What number is President Donald Trump:
$A) 54;
$B) 55;
$C) 44;
$D) 45;
$E) 46;
@ 12.
The President of the US lives and works in:
$A) The West-Minister Abbey;
$B) The White House;
$C) The Wite House;
$D) The church;
$E) The Washington DC;
@ 13.
The English Channel separates Great Britain from:
$A).Sweden;
$B).France ;
$C) The Netherlands;
$D) Scandinavia;
$E) Copenhagen;
@ 14.
The main nationality is:
$A) the Scots;
$B) the French;
$C) the English;
$D) the Welsh;
$E) the Irish;
@ 15.
The Union Jack is a (n):
$A) mountain;
$B) street;
$C) flag;
$D) Island;
$E) river;

@ 16.
The current British monarch is:
$A) Prince Charles;
$B) Queen Elisabeth II;
$C) Prince Albert;
$D) Queen Victoria;
$E) Camilla Parker Bowles ;
@ 17.
The Parliament of Great Britain consist of :
$A) The House of Lords and House of Commons;
$B) The House of Commons and House of Generals;
$C) The House of Democratic and The house of Lords;
$D) The House of Labour and Democratic;
$E) The House of Generals and Labour;
@ 18.
The kilt is a:
$A).musical instrument;
$B) short skirt;
$C) hat;
$D) pants;
$E) dish;
@ 19.
What part is called the “City of London”?
$A) oldest;
$B) richest;
$C) poorest;
$D) middle;
$E) nothing;
@ 20.
Stonehenge is a:
$A) theatre;
$B) monument;
$C) place for religious rituals ;
$D) stone;
$E) cathedral;
@ 21.
Globe is a (an):
$A) theatre
$B) cinema
$C) musical
$D) stadium
$E) map
@ 22.
Shakespeare’s birth place is:
$A) London;
$B) Stratford-upon-Avon;
$C) Edinburgh;
$D) Scotland;
$E) Princeton;
@ 23.
The chairperson of the House of Lords sits on a:
$A) divan;
$B) big box;
$C) woolsack;
$D) throne;
$E) parliament;
@ 24.
What was the first famous British pop group from Liverpool?
$A) the Beatles;
$B) Deep Purple;
$C) Queen;
$D) Spice Girls;
$E) Aerosmith;
@ 25.
What is Piccadilly Circus?
$A) a square;
$B) a disco;
$C) a circus;
$D) pub;
$E) arena;
@ 26.
The Tower of London now is a:
$A) royal palace;
$B) Museum;
$C) state prison;
$D) nothing;
$E) cinema;
@ 27.
What is the official name of the country whose language you study?
$A) Great Britain;
$B) The Commonwealth of Great Britain;
$C)The United Kingdom of Great Britain and Northern Ireland;
$D) Britain;
$E) The Commonwealth of the United States;
@ 28.
What is the state system of the United Kingdom?
$A) a constitutional monarchy;
$B) a parliamentary republic;
$C) a limited monarchy;
$D) federal republic;
$E) democratic community;
@ 29.
What is the symbol of England?
$A) a bald eagle;
$B) Britannia;
$C) red rose;
$D) shamrock;
$E) white rose;
@ 30.
What is the name of the British flag?
$A) the Union Jack;
$B) the Stars and stripes;
$C) the Maple leaf;
$D) God, save the queen;
$E) Union John;
6 лет назад
Предмет: Математика, автор: pakanna02272
Помогите вычислите:6-2 4/5
6 лет назад
Предмет: Геометрия, автор: Чолак
Найдите площадь прямоугольника ABCD,если AC=16 см и образует с одной из его сторон угол в 38°.
Можно и решение пж
9 лет назад
Предмет: Алгебра, автор: margaritabushu
 1:реферат:кроссворд по свойствам функции.
2:Решение уравнений  
-0,5<7-х<0,5   
9 лет назад