Cho tập A = {0;2;4;6}.Số tập con gồm 2 phần tử của A là?GIải thích

17. 5 + 7 . 17 - 16 . 12 tính nhanh 2 phút

làm nhanh cho 5🧨 và cthh hạn cuối là mai đó câu này đễ mà.

Calli : Trẻ em thích chơi đồ cổ Yc : `->` Tradi not Digi `->` Kị cam máy tính, ko chụp mờ `->` Ko viết bằng giấy kẻ ngang ( Kị giấy có kẻ-chấm) `->` Tone đen `->` Đúng luật họa ___________ NL : 13t thích các anh 8x,9x ._.

Mn giải hết giúp em vs em cho hay nhứt nuôn cám ơn trước

the best ,warmer drier ,the most beautiful ,the worst ,richer the biggest ,the largest ,the most important ,the most famous California is (1) the biggest state in the USA. It isn’t (2) the largest state; that’s Alaska. But it’s got (3) population and it’s certainly (4) state for the US economy (it’s (5) than most countries in the world). The coast had one of (6) climates in the USA; it’s (7) and (8) than most places. Some people would also say it’s (9) state! But California has some problems; Los Angeles has one of (10) crime rates of nay US city.

EX 5: Write in correct English ( chỉ ra từ sai và sửa lại câu, giải nhanh giúp em với ạ) 61. I have lived in Ho Chi Minh city since twenty five years ___________________________________________________________ 62. They haven’t saw such a terrble fire before ___________________________________________________________ 63. The house was cleaned up since we left for Nha Trang ___________________________________________________________ 64. The International Olympic Games continued without interrupt since 1896 ___________________________________________________________ 65. We didn’t try hard enough since the second semester ___________________________________________________________ 66. I have known this singer since she has been 16 year old ___________________________________________________________ 67. People enjoyed Beethovan’s music for nearly 200 years ___________________________________________________________ 68. The boy played soccer since 2 o’clock ___________________________________________________________ 69. All my classmates knew each other quite well since they were in grade 6 ___________________________________________________________ 70. These dancers performed that ballet qute well many times ___________________________________________________________ 71. When we visited my friends,they had dinner with their children ___________________________________________________________ 72. My father watered the flowers when it was started raining ___________________________________________________________ 73. Lan has met her old friends two days ago ___________________________________________________________ 74. Phong didn’t see that film before ___________________________________________________________ 75. The girls participated in that project twice ___________________________________________________________ 76. People speak English in Australia for a long time ___________________________________________________________ 77. Her father worked in that hospital since he has moved to this city ___________________________________________________________ 78. His sister played piano since she was eight ___________________________________________________________ 79. They didn’t see each other for a long time ___________________________________________________________ 80. The girls have finished their project two days ago __________________________________________________________

ai nhanh và đúng 5 sao, 1 câu trả lời hay

$\sqrt{23-4\sqrt{33}}$ - $\sqrt{18+2\sqrt{77}}$ $\sqrt{25-4\sqrt{39}}$ - $\sqrt{23+4\sqrt{33}}$ ​

bài 1 : em hãy viết 1 đoạn văn khoảng 150 chữ cho biết : lời hát ru có ý nghĩa gì đối vs em ?