Đáp án:
Giải thích các bước giải:
Phần b bài 2 (Tiếp)
⇒Tam giác BHM=Tam giác CKN(cạnh huyền -góc nhọn)
Vậy BH=CK(đpcm)CHÚC BẠN HỌC TỐT!Cho mk xin CTLHN THanks!
Giúp em câu b bài 4 và câu d bài 6 với ak. Tối nay em phải nộp rồi🙏🙏🙏
cho mình hỏi là Cacbon có phản ứng với HCL ko ạ
C. Writing. Write the conditional sentences from the following statements. 1. We will plant more trees. The air will be fresher. ®If we _________________________________________________________________ 2. We will use fewer cars. We will reduce pollution. ®If we _________________________________________________________________ 3. We will cycle to school every day. We will keep fitter. ®If we _________________________________________________________________ 4. We will use recycled products. We will save money. ®If we _________________________________________________________________ 5. People will throw rubbish into the right bin. They will keep the environment clean. ®If people ______________________________________________________________ 6. We will turn off the tap when brushing the teeth. We will save a lot of water. ®If we _________________________________________________________________ 7. People will travel more by public transport. The harmful gases in big cities will be reduced. ®If people ______________________________________________________________ 8. We will start at six. We will arrive there before noon. ®If we _________________________________________________________________ 9. The boy eats so many green apples. He will be ill. ®If the boy ______________________________________________________________ 10. We will use reusable bags for shopping. We will reduce waste. ®If we _________________________________________________________________ VI. Change these sentences into negative or interrogative. 1. I watched TV last night. (-) I didn’t .................................................................................................................................. 2. He played tennis with his brother. (?) Did he ................................................................................................................................... 3. She wrote a letter to her pen pal. (?) Did she ................................................................................................................................. 4. They visited Ha Long Bay. (-) They didn’t........................................................................................................................... 5. Sue and Sie went to school late yesterday. (-) Sue and Sie didn’t ............................................................................................................... VII. Write the questions for these sentences. 1. I went to Ha Noi yesterday. ® Where .................................................................................................................................? 2. I went to Ha Noi by bus. ®How......................................................................................................................................? 3. I went to Ha Noi with my parents. ®Who......................................................................................................................................? 4. We bought a new house last week. ®What.....................................................................................................................................? 5. We went home late in the evening. ®When..............................................................................?
a) có bao nhiêu cặp đường thẳng song song với nhau b) tứ giác BDEF là hình gì c) so sánh các tỉ số AD trên AB =AE trên AC và cho nhận xét về mối quan hệ giữa các cặp cạnh tương ứng
viết số thích hợp vào chỗ chấm ;6/5=18/....=......./80 =90/.....
Viết PTPU xảy ra khi cho etilen propilen tác dụng với H² /xt Ni ,t°,dd Br²,H²O /tx H+ ,HBr , phản ứng trùng hợp (xt,t° p) ,O² ( phản ứng cháy hoàn toàn ) ,dd KMnO⁴
Giup mk vs, mk can gap ah!!!!! 1. The truth is that I didn't understand a word she said( honest ) 2. I put a lot of care and attention into this letter ( trouble) 3. He disappointed me when breaking the promise ( kicked ) 4 he has installed an alarm to stop thieves stealing his car ( protect ) 5. We could hardly understand what the lecturer said about astronomy ( sense )
Mn giúp em gấp với ạ bài 3 ấy ạ
Giúp em câu 1 ( gồm 1.1 và 1.2 ) ạ !
help meeeeeeee !!!!!!!!!!!! I Fill in each of the following sentences with one suitable word 1 When we celebrate the New Year , my whole family always ............. at grandparents'home 2 I hope that her wish .......... success at the New Year will come true 3 On Tet holidays ,people prefer red , gold and yellow because they think that these colours will bring good ............ 4 My family celebrates the New Year with hope .......... happiness 5 Alaska is the biggest state ......... the USA 6 life in the city is ........... more exciting than life in the country 7 people always expect to be at home ...... Chirstmas Eve 8 Singapore is langer yhan my city ...... population II write full sentences , using given words or phrases . You can add wordds or phrases if necessary 1you/must brin/compass/case you/lost/when/travel alone 2you/shouldn't take/boay alone/this island of ha long bay /it/ too dangerous 3 bangkok,thailand / is one of/best/ cities/street foods 4 people /cheer/clock/strikes/midnight/New Year's Eve 5 my neighbourhood/suburb/Ha Noi
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