Предмет: Математика, автор: PainAkatsuki3034

Вычислите значение выражения ( х - у )² , если х²+у² = 45 и ху = 18​

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Автор ответа: yevheniiavz
1

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PainAkatsuki3034: Спасибо
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Предмет: Английский язык, автор: khramonoshkin
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Test. The Present Continuous



1. Fill in am, is, are.



1 .John … not a student. 2 .I … glad to see you. 3. How old … you? 4 .How old … your brother? 5. Tom and Bob … pupils. 6. That book … thin.7. The men … in the garden. 8. They … English. 9 … we Russian? 10. The women … young.11.The rooms … clean. 12. … it cold today? 13. The children … ten years old.



2. Add – ing to the verbs.

open run ski

put walk swim

close jump play

copy skate speak



3. Choose the sentences in the Present Continuous.



1. Reading books is my hobby.

2. I like reading.

3. He is reading now.

4. Are you writing now?

5. She is a teacher.



4. Form all types of questions.



1. We are writing a test now.

2. They are reading a book now.



5. Correct the mistakes.



1. Who are playing chess now?

2. I am sittin, amn't I?

3 .He isn't not reading.

4 .Sasha and Vova is writing a test.

5 We are planing a trip.

6 .Where you are going?

7 The men is coming here

8. She not is painting now

9. Who are playing?

10. You are sitting?





Test. The Present Continuous



1. Add -ing to the verbs.



turn shut get draw clean

speak give come have open

write touch put point play

stop go show look take



2. Fill in am, is, are.



1. You … standing at the blackboard. 2. The pupils … speaking English. 3. I … opening the window. 4. Where … the father and the son sitting? 5. My mother … coming home. 6. … he watching TV now? 7. Who … touching the book? 8. We … reading an English text. 9. Where … they sitting? 10. … the woman washing her stockings or her dress? 11. … it raining now? 12. They … going to school. 13. What … she putting in her bag? 14 .The men … sitting in the yard. 15. … the children dressing?



3. Make the sentences negative and interrogative.



1. I am shutting the door. 2. You are drawing a cup. 3. He is working in the field. 4. We are watching TV. 5. They are playing in the park.



4. Put the questions to the underlined words.



1. The father is reading a book .

2. The daughter is sitting at the desk.

3. They are going to school now.

4. I am making my bed.

5. The bus is turning to the right.



5. Put the verbs in brackets in the Present Continuous.



1. They boy (wash) his hand now.

2. The women (work) on a farm.

3. She (put on) a new dress.

4. I (sit) on the chair.

5. The children (dress) now.

6. The men (stand) at the door.

7. We (do) sums now.

8. The pupils (look) at the blackboard.
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в 1-й и 4-й четвертях
во 2-й и 3-й четвертях
в 1-й и 5-й четвертях
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Предмет: Математика, автор: Аноним
Розкрийте дужки!!!!!!!!!

1) (3a + 4b) · (-2)=

2) a · (4 – 2b)=

3) 4 · (a + b)=

4) -9 · (3а - b)=

Нужна срочная помощь!!!!!
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