постройте график функции y=4х-x^2
а)укажите промежуток в котором значение функции положительно

Найдите значение выражения: 32^0.48  * 2^0.6

1. Напишите уравнения реакций : а) гидролиза амилового эфира уксусной кислоты; б) синтеза бутилового эфира муравьиной кислоты; в) гидролиза жира на основе линоленовой кислоты в присутствии гидроксида калия.

2. Для одного из сложных эфиров напишите формулу и укажите название изомерной ему карбоновой кислоты.

Куб вписан в шар. Нйдит площадь поверхности шара, если ребро куба равно корень из 6 дм

Переведите. пожалуйста, диалоги :*

1. P: Hello, may I speak to the school secretary, please?

T: Speaking. Anne Rostron,WinchesterSchoolof English. Can I help you?

P: Yes, please. This is ..., a student fromMoscow. I'd like some information about your summer courses, please.

T: Fine, what would you like to know?        

P: Well, first how long are the courses?

T: In the summer, we offer four-week courses.      

P: Yes, where exactly is your school?                            

T: Well, we're only two minutes away from the beach. Our town is in the centre of the South of England. We have direct public transport fromLondonand airports. It's very easy to visit Stonehenge,OxfordandBathfrom here.

P: That sounds good. Mm, how much do the courses cost?

T: They cost from £850, depending on what type of accommodation you choose.

P: Just one more thing. May I get your advice on how best to apply for the courses?

T: Certainly. Just give me your name and address. We'll send you a brochure and application form.

P: My name is ...................................... and my address is ... ………………………………………………………….

T: Thanks. You have to fill in the application form and send it with the deposit of £150.

P: Thank you for the information.

2.   

P: What are  you doing ?

T: Nothing special.

P: Let's go to the pictures.

T: That would be wonderful! What shall we see?

P: I think the best thing is to go and see "…………………………………………………………………..".

T: I've heard about this film.

P: Yes, ………………………………………………………… is the film director. It's a marvelous film about ………………………………………..

T: I'd love to see it. What do you think, where shall we buy tickets?

P: I think we'll get them there.

T: Then, I guess we might as well.

3.  

P: Thanks, I'd love to. How about visitingRed Squareand the Kremlin? I can book tickets to the Diamond Exhibition.

T: That would be lovely. But is it far fromRed Square?

P: The Diamond Exhibition is housed in the Armoury building inside the Kremlin.

T: Oh, I see.

P: You can invite Laura to go with us. She'll enjoy seeing the collection of diamonds, especially the Imperial Crown with its red spinel and thousands of diamonds.

T: That's a great idea. She's nuts about jewels.

P: What time shall I pick you up? Does Saturday morning suit you? Is 9 o'clock OK?

T: Yes, 9 o'clock on Saturday.

P: See you then.