Câu 21 :Đặt `pt` của đường thẳng `d` là :`y=ax+b`Vì `d` $//$ `d'` `=>a = a'` `;` `bneb'``=>a=-1` `;` `bne1`Vì đường thẳng `d` đi qua điểm `M(2` `;` `1)``=>x=2` `;` `y=1`Thay `x=2` `;` `y=1` `;` `a=-1` vào `d` ta được :`1=-1*2+b``<=>1=-2+b``<=>b=3` `(tm)`Vậy `pt` của đường thẳng `d` là : `y=-x+3`
Gọi $:y=ax+b(a\ne 0)$ là đường thẳng đi qua $M$ và song song với $d:y=-x+1$ nên $d$ có dạng :
$d':y=-x+b(b\ne 1)$
Vì $d'$ đi qua $M(2;1)$ nên ta được:
$1=-2+b\Rightarrow b=3$ thỏa mãn
Vậy $d':y=-x+3$
Giúp mình với nha Hình ảnh ơn dưới
Giúp mik với, đang cần gấp ạ ><
6. Put the verds in brackets: present simple, present continuous, past simple, future simple or near future. 1. The teacher always (point) . . . . . . . . . . . . . at the blackboard when he (want) . . . . . . . . . . . . . to explain something. 2. Where (you/ go) . . . . . . . . . . . . .? - To the supermaket. I (have) . . . . . . . . . . . . . a picnic this Saturday. 3. Listen! Someone (knock) . . . . . . . . . . . . . at the door. I (go) . . . . . . . . . . . . . and (see) . . . . . . . . . . . . . who it is. 4. (you/ have) . . . . . . . . . . . . . any plans for tonight? Yes. I (catch) . . . . . . . . . . . . . a movie with my new friend Linda. (you/ want) . . . . . . . . . . . . . to join us? 5. Miranda usually (go) . . . . . . . . . . . . . to work by motorbike. But today she (go) . . . . . . . . . . . . . to work by bus as her motorbike has broken down. 6. I (pack) . . . . . . . . . . . . . for my business trip tomorrow. And I (come) . . . . . . . . . . . . back in a week. 7. (you/ usually/ climb) . . . . . . . . . . . . . the tree when you (be) . . . . . . . . . . . . . small? 8. The sun (rise) . . . . . . . . . . . . . in the East and (set) . . . . . . . . . . . . . in the West. Look, it (rise) . . . . . . . . . . . . . . 9. Mrs. Lien (be) . . . . . . . . . . . . . a gardener. Look! She (plant) . . . . . . . . . . . . . some more flowers in her garden. 10. Where (be/ Jim) . . . . . . . . . . . . .? In the bedroom. Last night he (drink) . . . . . . . . . . . . . some wine and (go) . . . . . . . . . . . . . home quite late, so now he (still/ sleep) . . . . . . . . . . . . . . Cần gấp! Thanks!
Mong các bạn giúp mình với ạ! Mình cảm ơn
có ai tên thiên ko ạ :> vào bình luận nhẹ :D cail: thiên mặp :v
Bàn về tầm quan trọng của gia đình đối với sự hình thành và phát triển nhân cách con người, có người từng băng khoăn: Không gia đình, con người học yêu thương, đoàn kết và hy sinh ở đâu? Em hãy viết một bài văn để trả lời câu hỏi trên. Mng giúp mk vs ạ, chỉ cần lập dàn ý thôi ạ
Put the verds in the brackets: future simple, near future or present continuous. 1. Danny (write) . . . . . . . . . . . . . a postcard at the moment. 2. I completely forget about this. Give me a moment, I (do) . . . . . . . . . . . . . it now. 3. I promise I (be) . . . . . . . . . . . . . there at four o’clock this afternoon. 4. She has not changed her clothes yet. I guess she (not/ take) . . . . . . . . . . . . . part in the party tonight. 5. What (the teacher and her student/ do) . . . . . . . . . . . . . in the class room now? 6. I have bought two tickets. My wife and I (see) . . . . . . . . . . . . . a movie tonight. 7. Tonight my sister and I (stay) . . . . . . . . . . . . . at home. We have rented a video. 8. Bob and his brother (always/ play) . . . . . . . . . . . . . music at midnight. I hate that. 9. Don’t eat all those cakes or you (get) . . . . . . . . . . . . . sick. 10. I (move) . . . . . . . . . . . . . from my house tomorrow. I have packed everything.
vẽ mầm cute nl:cần tìm ng tốt có sim vina
Exercise 5: Complete the sentences with tag questions. 1. We should follow the traffic rules strictly, ? 2. He seldom visits you, ? 3. You have never been in Italy, ? 4. Noone died in the accident, ? 5. Nothing is wrong, ? 6. Nobody called the phone, ? 7. Everything is okay, ? 8. Everyone took a rest, ? 9. Going swimming in the summer is never boring, ? 10. Let’s dance together, ?
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