Cho hệ phương trình: mx + (m-1)y = 3 4x + my = 6 a) Giải hệ phương trình theo m b) Tìm m nguyên để hệ phương trình có nghiệm nguyên

Giá trị nào là nghiệm của phương trình sau: (-4x+6)^2=6y-8

1 /-x/(-4)=3 2. tính tổng các số nguyên biết rằng -15<_ x<17 giải... 3 tìm x,y,z biết /x/+/y/+/z/=0 giải...

Mm làm hộ em từ câu e nhá Em hứa sẽ vote 5sao ạ Em cảm ơn🤧

Viết đoạn văn ngắn về lao động có sử dụng câu khởi ngữ

VI. Chọn đáp án đúng cho mỗi câu sau. 36. Traveling by plane is more expensive than traveling by train. A. Traveling by train is cheaper than traveling by plane. B. Traveling by train is more interesting than traveling by plane. C. Traveling by train is better than traveling by train. D. Traveling by plane is not as cheaper as traveling by train. 37. Viet Nam has a lot of tropical forests. A. There has a lot of tropical forests in Viet Nam. B. There is a lot of tropical forests in Viet Nam. C. There are a lot of tropical forests in Viet Nam. D. There aren’t many tropical forests in Viet Nam. 38. When is your father’s birthday? A. What is your father’s day of birth? B. What are your father’s date of birth? C. When is your father’s date of birth? D. What is your father’s date of birth? 39. The students will have a vacation that lasts for three months. A. The students will have a three – months vacation. B. The students will have a three month vacation. C. The students will have three months vacation. D. The students will have a three – month vacation. 40. How many hours a day do you spend doing your homework? A. How long does it take you to do your homework each day? B. How long does it take you doing your homework each day? C. How much does it take you to do your homework each day? D. How often do you do your homework?

Bài 1. Khoanh tròn phương án đúng để hoàn thành các câu sau. 1. If the weather is fine, we (goes/ will go) camping tomorrow. 2. My parents will give me a gift if I (will pass/ pass) the final exam. 3. If you are polite to others, they (will be/ are nice to you). 4. Unless James (studies/ will study) hard, he will fail the exam. 5. My parents won’t allow me to go out if I (don’t finish/ won’t finish) my homework. 6. If the cable TV (doesn’t/ won’t) work, we will rent a DVD. 7. If you don’t want to stay at home, you (go/ can go) with me to the supermarket. 8. If you (will be/ are) a good listener, you will gain many friends. 9. James won’t attend the meeting if he (won’t/doesn’t) want to. 10. You can’t have this job unless you (have/will have) long working experience. 11. If you were a billionaire, what (would you do/ did you do)/? 12. If Kate owned a computer, she (would spend/ spent) most of her free time on it. 13. If I (would know/ knew) his address, I would give it to you. 14. She would look much better if her hair (didn’t look/ wouldn’t look) so unkempt. 15. If I were in your situation, I (would/ will) let the nature take its course. 16. You would be more comfortable now if you (didn’t/ wouldn’t) wear high heels. 17. I (wouldn’t/didn’t) buy things on the Internet if I were you. 18. If you (met/ would meet) your favorite author Mark Twain, what wouldn’t you ask him? 19. His parents would be very proud if he (wouldn’t be/ weren’t) so naughty. 20. If Jane had more money, she (would treat/ treated) herself to a decent meal. ghi đáp án hộ mk nha

Cho tam giác OAB cân tại O. Lấy điểm C thuộc OA. Trên tia đối của tia BO lấy điểm D sao cho BD = AC. CD cắt AB ở M. Trên tia đối của tia AB lấy điểm P sao cho AP = MB. a/ Chứng minh: APC = BMD b/ Tam giác CMP là tam giác gì? Vì sao?

5) Em có nhận xét gì về tổ chức bộ máy chính quyền thời Lê Sơ ?

Tìm điều kiện xác định của các phương trình: a, 3x-2/x+7=6x+1/x^2+3x+2 b, x+1/x-1 -x-1/x+2=4/x^2-1 c, x-7/x^2+1=x+6/x^2-x+1 d, (3/3x^2+1 +1/4):5x/3-x=0