Giải giúp em với ạ. Em hứa sẽ vote và tim.

Bài 3: (3đ) Cho tam giác ABC vuông tại A (AB < AC), đường cao AH (H thuộc BC). Kẻ HD vuông góc AB tại D và HE vuông góc vs AC tại E. a) Chứng minh: Tứ giác ADHE là hình chữ nhật. (1đ) b) Gọi F là điểm đối xứng của điểm H qua điểm E. Chứng minh: Tứ giác ADEF là hình bình hành. (1đ) c) Gọi M là trung điểm của BC. Chứng minh: AM vuông góc vs AF. Nhớ vẽ hình nha mn

giúp mình với ạ vote 5 sao cho lời giải chi tiết, đúng

Tính giúp em ạ , em đang cần gấp . Em cảm ơn . Anh chị nào giúp em với😭

gõ lại ra để mình sao chép là được-không phải làm

Bài 6: Xe thứ nhất chở được 25 tấn hàng. Xe thứ hai chở 35 tấn hàng. Xe thứ ba chở kém trung bình cộng 3 xe là 10 tấn. Hỏi xe thứ 3 chở bao nhiêu tấn hàng? Gấp ạ nhanh nha. ai xong trc ctrl hay nhất và cảm ơn 5*

Có ai fan gãy không Mọi người thik ai trong gãy, tui thik thảo vs hiếu Vẽ đậu

vẽ mầm cute nl:hehe đây là tui đếy

1. The ceiling is ______. A. too high for me to reach B. too tall for me to reach C. so high for me reaching D. enough high of me to reaching 2. He goes to England_____. A. so that he learns English B. so that he may learn English C. so to learn English D. so he learns English 3. It was too late _____. A. to go for them to the party. B. for them to go to the party. C. because they go to the party. D. so they go to the party. 4. She hid the present______ _______. A. so that the children wouldn’t find it B. in order to the children not to find it C. for the children not find it D. in order that the children not to find it 5. “ I tried to study English well. I wanted to get a good job.” means________. A. I tried to study English well so that I can get a good job B. I tried to study English well in order that I can get a good job C. I tried to study English well to get a good job D.I try to study English well in order that I can get a good job 6. “They whispered. They didn’t want anyone to hear them.” means _____. A. They whispered in order to make anyone hear them B. They whispered so that no one could hear them C. They whispered to make everyone hear them D. They whispered in order that make everyone hear them 7. “We preserve natural resources. We can use them in the future.” means_____. A. We preserve natural resources so that we can use them in the future B. We preserve natural resources so as to we can use them in the future C. We preserve natural resources in order to we can use them in the future D. We preserve natural resources for fear that we can use them in the future 8. The teacher was explaining the lesson slowly and clearly_____. A. to make his students to understand it B. in order that his students can understand it C. so as to that his students could understand it D. so that his students could understand it 9. I am not _____ a car. A. rich enough to buy B. too rich enough to buy C. too poor to buy D. enough rich to buy 10. _______ to go to the cinema. A. it was late so that B. that it was late C. it was too late D. such too late 11. The piano was too heavy ______. A. for nobody to move B. for nobody to moving C. for anyone to move D. for anyone to moving 12. The school boys are in hurry ______ they will not be late for school. A. so as to B. to C. in order that D. for 13. He turned off the lights before going out _____ waste electricity. A. so that not B. as not to C. in order that not D. so as not to 14. The film was ______ through. A. too long for us to see B. very long for us to see it C. too long for us seeing it D. too long enough for us to see 15. The coffee was _____ to drink. A. so strong B. strong C. enough strong D. too strong 16. I bought this new software _____ Chinese. A. for learning B. learning C. to learn D. learned 17. Mary jogs everyday ______ lose weight. A. so she can B. so that she can C. because she can D. so that to 18. He was playing very softly¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬_____________ he _____________ disturb anyone. A. in order that / couldn’t B. so that / can’t C. so that / could D. so/ can 19. I sent him out of the room _________discuss his progress with his headmaster. A. for B. in order to C. so as D. in order that 20. He fixed a metal ladder to the wall below his window_____ escape if there was a fire. A. to B. not to C. so as not D. so that

Giải các phương trình, bất phương trình sau: h. 4-x+x=x-4+4 i. 3x- 12<x