user-avatar
thuyhd
2 năm trước
một mảnh đất hình tam giác có trung bình cộng của cạnh đáy và chiều cao là 52,1 m chiều cao kém cạnh đáy 14m.trên thửa ruộng người ta trồng lúa cứ 1m2 thu hoạch 0,5 kg thóc.tính số thóc thu hoạch được trên thửa ruộng đất bằng bao nhiêu kg
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Exercise 4: Choose the best options to complete the following sentences. 1. Thank you. This Information ...................... me a lot. A. helps C. benefits C. volunteer D. Both A &B are correct. 2. All of these books and clothes will be ...................... to children in Ha Giang. A. encouraged B. donated C. clean D. All are correct. 3. My mom often asks me to ...................... my room on the weekend. A. stay B. volunteer C. make D. clean up 4. Students often make postcards and sell them to ...................... to help the poor. A. Ø B. raise funds C. raise money D. Both B & C are correct. 5. Try to study harder and be more active to ...................... to your life. A. make a difference B. raise money C. clean up D. donated 6. My sister works as a volunteer at a ...................... in the city. A. donate B.shelter C. community D.homeless 7. Nowadays, a lot of ...................... live in a nursing home. A. homeless people B. elderly people C. street children D. disabled people. 8. There are a lot of ...................... after the storm. A. homeless people B. elderly people C. nursing home D. None are correct. 9. Many ...................... gifts will be given to the poor in Lao Cai this Sunday. A. blood B.charitable C. dirty D.flooded 10. On Fridays and Saturdays, 100 ...................... for free chicken noodle soup are given to the poor by Mr. Khanh in Hanoi. A. coupons B.mentors C. tutors D.blankets 11. We are collecting ...................... and clothes for street children. A. dirty B.blood C. rubbish D.blankets 12. Many ...................... are ...................... to protect the environment. A.non-profit organisations – provided B.tutor – established C.non-profit organisations –established D.coupons –donated 13. This program will ...................... life skills for young people. A. provide B. be forced C. graffiti D. establish 14. She is very ...................... She always helps others. A. dirty B. kind-hearted C. charitable D. flooded 15. Can you help me ...................... theseclothes? A. tutor B. establish C. provide D. sort 16. Yesterday I went to work late because of a ...................... A. traffic jam B. rubbish C. mural D.flooded

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team