Реши уравнения: 8 целых 1/17-(х+2 целых 3/17)=3 целых 9/17 + 15/17

В треугольнике ABC угол C 90 градусов, биссектриса AD равна a, угол A = альфа. Найдите BD. Если можно, подробным решением) буду благодарна!) заранее спасибо:3

От слов медведь,лиса,волк,собака образуйте притяжательные прилагательные.Запишите слова в столбик и разберите их по составу.

Переделайте предложения в сложное.

Пример: Yuri Gagarin was the first russian cosmonaut. In 1961, he travelled into space for the first time in history.

Переделанное:Yuri Gagarin was the first to travel into space in 1961

Сами предложения:

1) Galina Ulanova was a great ballet dancer of the 20th century. Her performances were a great success on many stages of the world.

2) Ivan Bunin was a great poet and novelist, He was the first Russian Nobel Prize winner in literature.

3) Zhores Alferov is an outstanding physicist. He received the Nobel Prize for physics in 2000.

4) Aleksey Nemov is a famous gymnast. His gymmnastics achievements brought many gold, silver and bronze medals as well as many fans.

5) Aleksander Solzhenitsyn is a writer and historian. He is known for the series of novels about Russian such as August 1914, the red wheel and others.

6) Vladimir Dal was a writer and a disctionary writer. He complited the famous Explanatory Disctionary of the living russian language and some collections of proverbs and fairy tales.

7) Kazimir Malevich was a painter. His black square made him famous throughout the world.

8) Aleksey Leonov. travelled into space in 1965. He made the first space walk in history then.

1)Опишите в тетради по географии особенности распростронения поверхностных вод в Евразии. 2)Сопоставьте густоту речной сети с климатической картой.