Предмет: Алгебра, автор: Stasydream

решите графически систему уравнений y+x=3 xy=2

Ответы

Автор ответа: krestinabarysh
0
получается y'/y^3+2x/y^2=2x^3.
z=1/y^2
z'=-2*y'/y^3
(-z'/2)+2xz=2x^3.
Автор ответа: Stasydream
0
нужно график сделать по заданию
Автор ответа: krestinabarysh
0
понятно
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TERM 3

Summative assessment for the unit “Our Health”

Reading

Task 1. Read the text below and complete the task.

Summer Holidays

I always enjoy summer. Do you? In summer, I like to relax and forget about school. I don't have to get up early and I can see my friends any time I want. I like to spend my holidays with my parents. We usually go somewhere with our parents. We love to swim, lie in the sun, but most of all I prefer going camping. We go to different places in Britain and sometimes abroad. In Britain, I like going to Devon, Somerset and Scotland – but my favourite place of all is Yorkshire. It has a lovely countryside and fantastic old buildings. The only problem is the weather! Last summer, I had two holidays. One was in Somerset, in a little village by the sea, and another was in Naples, in Italy. I went with my mother to Italy – by train! It was unforgettable!

Sam, 12 Britain

Mark the sentences True or False.

Example: Sam finds summer an enjoyable season. True



1. Sam usually has a relaxing timetable in summer. ____

2. Sam prefers not to remember about school during vacation time. ____

3. Sam wants to spend his holiday with his friends than with his parents. ____

4. Lying in the sun is Sam’s favourite activity during holiday. ____

5. He dislikes weather in Yorkshire. ____



Grammar

Task 2. Fill in will or won’t (Future simple)



1) Mary was born in 1995. In 2007 she ____ be 12.

2) It’s sunny today. It ______ rain.

3) This mouth is May. It _____ be July next mouth.

4) I like animals. I_____ go to the zoo tomorrow.

5) Jenny: “Mum, the bus is late. I _____ be home until eight o’clock.