Tam giác ABC có AB=AC=40cm BC = 10cm, phân giác BD.

a) Tính độ dài CD và BD.

b) Tính cosC.

a.Biết R1=10Ω, R2=8Ω, R3=12Ω, U=6V. Tính R ? Tính U2?

b. Biết R1=8Ω, R2= 12Ω, R3= 10Ω, I=1,5A. Tính U ? Tính I2?

11. My mother asked me, "Has your friend left for Canada yet?"

My mother asked me_______________________________________________ .

Giúp mình với ạ mình đang cần gấp

12. “Are you going out tonight?” she asked.

She asked me_____________________________________________________ .

13. “I must go to the dentist tomorrow,” he said.

He said that______________________________________________________ .

14. Mai said, “The food is very delicious there.”

Mai said that_____________________________________________________ .

15. She said to him, "I have invited you to my party!"

She said to him that________________________________________________ .

16. The tourist said to me, “How often does the train get in?”

The tourist wanted to know__________________________________________ .

17. She asked me, "Will you send me an email tomorrow?”

She asked me_____________________________________________________ .

18. "I may catch the bus." I said to Hoa.

I told Hoa that ____________________________________________________ .

19. Minh shouted, “There is a mouse under this table.”

Minh shouted that _________________________________________________ .

20. “I have to buy wrapping paper and a birthday card this week.” I told Phuong.

I told Phuong that_________________________________________________ .

2. “Can I have a piece of cake?” she asked.

She asked me_____________________________________________________ .

3. “Are there any shopping centers nearby?” she asked.

She wanted to know________________________________________________ .

4. Jane said, “I have been to Dubai several times.”

Jane said that_____________________________________________________ .

5. Mary told me, "I'll meet you at Lee's Sandwich shop today."

Mary told me that_________________________________________________ .

6. "Stop playing stupid computer games!" said his father.

His father asked him_______________________________________________ .

7. "Don’t walk on the grass!" the park attendant told kids.

The park attendant told kids_________________________________________ .

8. She said, "I don't know why I am so tired today."

She said that _____________________________________________________ .

9. Our teacher asked us, “What are you most worried about?”

Our teacher asked us_______________________________________________ .

10. "Do you sleep at least eight hours a day?" the doctor asked him.

The doctor asked him______________________________________________ .

11. My mother asked me, "Has your friend left for Canada yet?"

My mother asked me_______________________________________________ .

12. “Are you going out tonight?” she asked.

She asked me_____________________________________________________ .

13. “I must go to the dentist tomorrow,” he said.

He said that______________________________________________________ .

14. Mai said, “The food is very delicious there.”

Mai said that_____________________________________________________ .

15. She said to him, "I have invited you to my party!"

She said to him that________________________________________________ .

16. The tourist said to me, “How often does the train get in?”

The tourist wanted to know__________________________________________ .

17. She asked me, "Will you send me an email tomorrow?”

She asked me_____________________________________________________ .

18. "I may catch the bus." I said to Hoa.

I told Hoa that ____________________________________________________ .

19. Minh shouted, “There is a mouse under this table.”

Minh shouted that _________________________________________________ .

20. “I have to buy wrapping paper and a birthday card this week.” I told Phuong.

I told Phuong that_________________________________________________ .

Khi đặt vào hai đầu dây dẫn một hiệu điện thế là 12V thì cường độ dòng điện chạy qua nó là 0,6A. Nếu hiệu điện thế đăt vào hai đầu dây dẫn đó tăng lên 36V thì cường độ dòng điện chạy qua nó là bao nhiêu?

Giúp mình vs ạ, mình đang cần gấp

Viết đoạn văn 10 câu nói về phong cách sống của người trẻ hiện nay mà em cho là ”rất Việt Nam, rất phương Đông, nhưng cũng đồng thời rất mới, rất hiện đại. ”

Giúp mình vs mình cần gấp

Người trốn khỏi nơi cách ly hoặc không tuân thủ quy định về cách ly hoặc từ chối, trốn tránh việc áp dụng biện pháp cách ly, cưỡng chế cách ly để phòng, chống dịch bệnh COVID-19 mà gây lây truyền dịch bệnh cho người khác thuộc trường hợp vi phạm Tội làm lây lan dịch bệnh truyền nhiễm cho người theo Điều 240 Bộ luật Hình sự năm 2015 (sửa đổi, bổ sung năm 2017) thì bị phạt tù tối đa bao nhiêu năm?

Fill in the gap with a word given in the box

1. There have been many ………………..to Mars by human beings since the mid 20^th century.

2. There are many reasons why the …………………on Mars is not suitable for human life.

3. The ………………of telescope has helped people to see planets in the distance.

4. I don’t like the climate in this………….. because it has a lot of rain and wind.

5. What do you think is the biggest ………………between Earth and Mars?

6. It is the only …………………that has water in liquid form on the surface.

7. What is the part of the Earth’s ………………and atmosphere in which plants and animals can live?

8.  Can those aliens understand all ……………human speak?

VII/ Đọc kĩ đoạn văn rồi trả lời các câu hỏi sau: (16đ)

      I had a very bad headache when I was young. I had a headache when I wenr to bed and it was still there when I got up in the morning. I took medicine from many doctors but it just made me more tired so I became very worried.

     Then I read a book about Yoga for medical problems , and it changed my life. I tried lots of methods in the book and I learned a lot of about the power of mind. After five months , my headache disappeared and I stopped taking the medicine.

1/ What was the matter with the writer?

.................................................................

2/ When did he have a headache?

.................................................................

3/ Did he take any medicine?

................................................................

4/ How did he become after taking the medicine?

.................................................................

5/ What kind of book did he read?

...............................................................

6/ Did it change his life?

................................................................

7/ What did he learn about?

.................................................................

8/ What happened after five months?

..........................................................