определите вес груза, поднимаемого при помощи системы блоков, если к свободному концу верёвки приложена сила F=300Н

длина ребра куба равна 1см.2мм.Вычисли площадь одной грани куба.Вычисли общую площадь всех граней куба.

Пожааалуйстаа помогиитее

  Read the text.

Changes

Would you like to learn to speak Mandarin, the main language of the Chinese people? Do you think it’s a good idea to learn about environmental problems like climate change at school? In theUKtoday schools want to teach new subjects, not traditional ones. They want to teach students about things that are important today.

For example,Chinais becoming a very important country for business. Some teachers think it’s better for students to learn Mandarin at school than Spanish or French. At the moment French is the most popular language inUKschools but it’s not very useful for the students’ future jobs.

Geography lessons are also changing. Some people think it’s more important to learn about modern environmental problems in geography than to learn about continents and countries.

A lot of people don’t like the changes. They think it’s important for children to study traditional subjects at schools and learn different subjects later. Of course, parents want their children to learn EVERYTHING but unfortunately there isn’t enough time in the day and I’m sure children don’t want to stay at school in the evenings too!

Choose the best answers.

1  Today in the UK

    A  children can go to China.

    B  schools want to teach Mandarin.

    C  children don’t like languages.

2  The French language

    A  is very difficult.

    B  is useful for work.

    C  is popular in UK schools.

3  In geography

    A  students don’t learn important things.

    B  teachers want to teach students about modern problems.

    C  students like learning about countries.

4  Which sentence is true?

    A  Everyone wants these changes.

    B  The students want the changes.

    C  Only some people want the changes.

5  Parents

    A  would like their children to learn more things.

    B  want to teach their children important things.

    C  want their children to stay at school in the evenings.

Определите взаимное расположение прямой y=20 и окружности

(x-5)^+(y-10)^=100.

(^ -это означяет вквадрат)помогите пожалуйста

Составь и запиши четверостишее о весннем цветке из данных частей речи:

солнце,  вырос, лучик, уронило, первый, золотой, одуванчик, молодой.!! Плиз очень надо))