+) x=0
2^x+3=2y
⇔1+3=2y
⇔2y=4⇒y=2
+)x≥1
⇒2^x chẵn ⇒ 2^x+3 lẻ mà 2y luôn chẵn ( Vô Lý )
Vậy x=0 , y=2
giải dùm mình 2 câu này với ạ , mình cần gấp 🥺🥺🥺
Cho tam giác ABC, có đường cao AH, cho BH= 3cm, HC= 9cm, góc ACB= 30° a) tính chu vi tam giác ABC b) tam giác ABC là tam giác gì? Vì sao?
Write a complete sentence using the cues given 1. Tay/live/fertile pasture/ where/they/grow/rice/raise/cattle/poultry.
Đặt tính rồi tính: A. 364 + 254 B. 270 – 89 C. 250 x 3 D. 465: 5
60đ liệu mà làm có tâm + giải thik nha cả nhà iu của Kem :3 2. Put a relative pronoun into each gap. At the same time, decide whether the relative pronoun can be omitted by writing it between brackets. 1. The books, _________ I’d ordered over the internet, took nearly three weeks to arrive. 2. The books _____________ I’d ordered from a bookshop arrived the following week. 3. My parents, ____________ were born in the north of England, moved to London to find work. 4. The man ___________ lives upstairs is always playing music when I’m trying to get to sleep. 5. The building _____________ I live in was built in the 1920s. 6. The building ____________ I live was built in the 1920s. 7. The car’s making a noise again, ________means we’ll have to get someone to look at it. 8. The employee to __________you refer is no longer working for this company. 9. Do you remember the name of the man ____________ car you crashed into? 10. The hotel __________ we stayed was very good for the price.
Exercise 5: Rewrite the sentences 16. He admitted that the woman had bribed him for a better job. (being) -> 17. John didn’t expect his mother to give him a valuable present. (be) -> 18. He disguised in order that nobody could recognize him. (avoid) -> 19. She hates it when people criticize her in public. (criticized) -> 20. The teacher prepared the lesson to explain it to the students. (to be) ->
Đặt câu hỏi cho bài này càng nhiều càng tốt r minh cho 5 sao
Vẽ con mèo .. Như hình, digi, full line, màu '-' * Chép giống 60%, không nhận fanart '-'
Đo chiều dài của một sợi dây được 3m và 27cm . Hãy viết số đo độ dài của sợi dây dưới dạng số đo có đơn vị là : xăng-ti-mét ; đề-xi-mét ; mét .
Tìm `x` `a) x × 2/7 = 3/14` `b) 9/7 xx x = 3/5` (nhớ Quy Đồng)
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