Tìm x:a.3^x.3=81 Làm đúng vote 5* nha b.4^x:4=16 c.3.2^x=48 d.2^x+2^x=144 e.3^x+3^x+2=2430 f.2^x+3-2^x=224 g.2^x+2^x+1=96 h.7^x+1-7^x=2058 i.3^x+2-3^x+1+3^x=189

Giúp mình với nhé Ai nhanh đúng cho hay nhất Sai= bc

Hãy viết 1 đoạn văn về nguyên nhân cuộc Duy tân Minh Trị dựa trên các từ khóa sau : Mạc phủ , Duy Tân , Thiên hoàng , Samurai , thương nhân , nông dân , hiệp ước Kanagawa , tinh thần dân tộc

Làm giúp mik nha cảm ơn các bạn nhiều

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Giải bài này cho mình với , nhé Viết một đoạn văn miêu tả từ 7-10 câu. Chủ đề tự chọn có sử dụng ít nhất 5 từ láy, gạch chân dưới từ đó

(- $\frac{2}{3}$ ) +(-1 $\frac{1}{6}$ ) -2,5

Một tấm bìa hình bình hành có cạnh đáy 15dm, chiều cao tương ứng dài bằng 1/3 cạnh đáy. Hỏi diện tích tấm bìa bao nhiêu đề-xi-mét vuông?

1. Lan doesn’t wear this coat in the winter. It isn’t warm. (ENOUGH)  This coat isn’t warm enough for to wear 2. Three people can’t sit on this sofa. It isn’t wide. (ENOUGH)  This sofa isn’t __________________________________________________ 3. He didn’t get the job. He wasn’t experienced. (ENOUGH)  He wasn’t _____________________________________________________ 4. Her hair is long, curly and brown.  She has _______________________________________________________ 5. The skirt is pretty, short and pink.  It’s __________________________________________________________ 6. The baby’s eyes are nice, big and blue.  The baby has __________________________________________________ 7. My dress is long, new and yellow.  I have ________________________________________________________ 8. That is a chocolate bar. It’s new. And it’s big.  That is _______________________________________________________ 9. My dress is long, new and yellow. => I have ______________________________________________________ 10.Our vacation was long and interesting. => We spent ___________________________________________________ 11. That is a chocolate bar. It’s new. And it’s big. => That is _____________________________________________________ 12. Leaving medicine around the house is dangerous. It’s _________________________________________________________ 13. Playing with matches isn’t safe. It is very _____________________________________________________ 14. Keeping medicine in locked cupboards is safe. It is safe _____________________________________________________ 15. Her hair is long, curly and blond. She has ________________________________________________________ 16. His hair is short, wavy and brown. => He has _____________________________________________________ 17. This exercise is very difficult. They can't do it. This exercise isn't _________________________________________________ 18. He wasn’t hard-working. He couldn’t get good grades. ( Use “ enough” ) => He _________________________________________________________ 19. I am lucky because I have many good friends.  I am lucky __________________________________________________ 20. She was not old, so she couldn't be in my class.  She was not _________________________________________________ 21. Do you want to pass your exams? Work hard enough! ( Use “ enough” ) => You have to work _____________________________________________ 22. Lan has ( black / straight / long ) hair. Lan has _________________________________________________________ 23. Mary's nose is straight and her hair is long. => Mary has ____________________________________________________ 24. His hair is wavy and blonde. He has _______________ Giúp mình với ạ

Cho 3 nguyêntử X,Y,Z cótỉlệ NTK lầnlượtlà 1:4:2.Biết tổng NTK của X và Y nặnghơn NTK của Z là 42 đvC. Tìm 3 nguyêntử X,Y,Z. Mọi người giúp mình với, đang cần gấp