в семье шесть дочерей, каждая из них имеет брата. сколька всего в семье детей

Решите уровнение: 4/9x=5/2*16

The Russian writer, the author of the book «The Childhood. Adolescence. Youth.»

An English writer, the author of the novel `Ivanhoe`.

A French writer, the author of the book `Fifteen-year captain`.

ответ:+1 подробно:+2 с картинкой:+3 видеоролик:+4 чудесный:+5

Вариант 2

1 Составте многочлен  р(х)  и запишите его в стандартном виде, если р(х) = р1(х) + р2(х) – р3(х),   где

             р1(х) = 2х2 - 5х;   р2(х) = 3х2 + 1;     р3(х) = х – 2.

 2 Преобразуйте выражение в многочлен стандартного вида:

          а) -5ху(3х2 - 0,2у2 + ху);   б) (х - 5)(х + 4);     в) (35х3у - 28х4): 7х3.

 3  Упростите выражение, применяя формулы сокращенного умножения:

             (3х - 1)(3х + 1) + (х + 3)2

 4 Найдите три последовательных натуральных числа, если известно, что квадрат меньшего из них на 47 меньше произведения двух других.

 5 Докажите, что значение выражения  2у3 + 2(3 - у)(у2 + 3у + 9) не зависит от значения переменной.

Who is it?

1)From the time of her marriage to the Prince of Wales in 1981 until her death in a car accident in Paris in 1997, She was one of the world's most high-profile, most photographed, and most iconic celebrities.

2)He was a politician, a soldier, an artist, and the 20th century's most famous and celebrated Prime Minister.

3)He was a musician and composer who was a member of the Beatles, the biggest rock band of the 1960s.

4)He was a British naturalist of the nineteenth century. He and others developed the theory of evolution. This theory forms the basis for the modern life sciences. His most famous books are 'The Origin of Species' and 'The Descent of Man'.

5)He was a military, political, and religious figure who led the Parliamentarian victory in the English Civil War (1642–1649) and called for the execution of Charles I. He was Lord Protector of England for much of the 1650s, ruling in place of the country's traditional monarchy.