Cần giải câu 5,6,7,8 chi tiết theo kiểu đặt ẩn phụ

Vẽ giúp mik tấm này vs ạ 100% nhen ko cần full màu chỉ full bằng chì thôi

Bài này hơi rắc rối xíu nhưng đây là bài của HSG giải em đg cố gắng mấy anh chị giúp em vs. EM KO GHI SAI ĐỀ!

Tìm |x|,|y+1|,x, y biết +) |x|-|y+1|=1 và |x|+|y+1|=12 +) |x|-|y+1|=2 và |x|+|y+1|=6 +) |x|-|y+1|=3 và |x|+|y+1|=4

Tính nhanh 10+20+30+40+60+70+80+90=?

Cho tam giác ABC cân tại A có AB=AC=13,BC=24.Kẻ AH vuông góc BC(H thuộc BC) a,chứng minh tam giác AHC=AHB b,Tính độ dài AH c, trên tia đối của tia BC lấy điểm K,trên tia đối của tia CB lấy điểm I sao cho BK=CI,chứng minh tam giác ABK=ACI d,Kẻ BM vuông góc AK,CN vuông góc AI,Chứng minh tam giác MBK=NCI

Giúp em câu này với ạ. Em cảm ơn Cho tệp IN.TXT chứa: Dòng 1 số lượng phân tử của dãy số nguyên(n<=50) Dòng 2 chứa giá trị của các phân tử trong dãy số. Viết chương trình đọc dữ liệu từ tệp IN.TXT. Đếm số lượng và tính tổng các phân tử là số chẵn trong dãy số đó. Kết quả ghi vào tệp OUT.TXT dưới dạng Dòng 1: số lượng số chẵn dùng Dòng 2: tổng các số chẵn

IV.Put the verbs in brackets in the correct tense form. 1. He (watch) TV right now. 2. At present they (sit) in the class. 3. This year we (learn) English. 4. Look! Peter (play) football in the schoolyard. 5. Be quiet! The baby (sleep) . 6. Look! The man (smoke) there. 7. She (write) to her parents now. 8.He (go) to school every day. 9.She (come) from Germany. 10.My parents usually (go) to work by car. 12.We (watch) TV every night. 13.He (walk) to work every day. 14.He (be) in Ca Mau. 15.They (be) students. 16.She (wash) her clothes every Sunday. 17.She (study) English every day. 18,Mary (go) shopping with me yesterday. 19,The policeman (drive) away ten minutes ago. 20,The biscuit factory (close) last year. 21,The headmaster (come) to the school in 1985. 22,You (spend) a lot of money last month? 23,I last (go) to Spain in 1990. 24,The boy (finish) their homework yesterday. 25,Rolf (buy) the leather jacket last week. 26,I (not have) any trouble with my car last week. 27,She (wash) her clothes last night 28,What you (do) last weekend? I (stay) at home and (sleep) 29,When she was young, she (be) beautiful and attractive. 30,Where you (be) last night? 31,The man (get) out of the car, (lock) it and (come) into the building. 32,You (join) with them on a picnic last week? 33, you (take) at trip to London next week? 34,She (water) the flowers next month. 35,They (build) a new bridge in this province next year. 36,Tomorrow she (send) the letter to Hanoi. 37,In 2020 she (move) to live in Ho Chi Minh City. 38,I (meet) my parents in an hour. 39,I think it (be) sunny tomorrow. 40,I am sure he (pass) the exam. 41,I (stay) at home if it rains. 42,He (send) the letter when he goes to the post office. V. Complete the sentences with There is or There are. 1.................. thirty-five students in my class. 2................... nice posters in our classroom. 3................. green curtains in his room 4................... six children in the room. 5................... a sofa in the living room. 6.................. dishes on the floor. 7. ................... a ceiling fan in the bedroom. 8.................. some pictures in my room. 9. .................... a big window in the living room. 10. .............. two sinks in my bathroom IV.Fill in the blanks with is, are, isn't, aren't, do, does, where. 1. We staying at my cousin‟s house in Vung Tau. 2. they have the right things for the kitchen? 3. Where you live, Phong? 4. does your uncle live? 5. How many rooms there in the hotel? 6. There any chairs in the kitchen. We need five chairs. 7. Which house you want to live in? A town house or a country house? 8. There any furniture in my bedroom. I need many things. 9. In my house, there four bedrooms. 10. What Mrs. Brown need for the living room? VI. 1There/ book/ on/ the table.=> ................................................. 2. There/ shoes/ under/ the chair............................................................................................................ 3There/ not/ TV/ in/ his room.=> ............................................................................ 4.There/ not/ pens/ on/ my desk.=> .................................................................. 5There/ boy/ behind/ that tree.=> ..................................................... 6.There/ girls/ in front of/ the house.=> ................................................ 7.There/ not/ telephone/ in her office.=> ..................................................................... 8.There/ not/ chairs/ downstairs.............................................................................. VII.Fill in the blank with: in, on, to, under, behind, near. Ex: The book is on the table. 1. They are waiting front of the theater. 2. The lamp is next the picture. 3. The picture is the wall. 4. Can you see the cat the picture? 5. The child is hiding a tree. 6. The armchairs aren‟t far from the television. They are the television. 7. The water flows the bridge.

Giúp em giải bài này vs ạ em đg cần gấp.

I. Find the word which has a different sound in the part underlined. Read the words aloud. 1. A. develops B. cars C. meets D. books 2. A. walks B. kisses C. dances D. boxes 3. A. laughs B. months C. washes D. works 4. A. dies B. roses C. dishes D. rouges 5. A. asks B. makes C. stops D. windows 6. A. watches B. thanks C. changes D. passes 7. A. finishes B. puns C. buildings D. birds 8. A. catches B. wishes C. plays D. uses 9. A. lives B. cooks C. breathes D. rooms 10. A. means B. things C. practices D. fills II. Put the words in the box into three word. elephants studies changes givers lions washes helps bears places giraffes balls maths works pandas ships /z/ /iz/ /s/ III Fill in the blank, using is or are. 1. There …………. a clock, two chairs and a table in my bedroom. 2. …………. there sugar in the kitchen? 3. …………. there three doors in your house? 4. There …………. tall trees around my house. 5. There …………. not water in that glass. 6. There …………. more than fifty books on my bookshelf. 7. There …………. an armchair in my room. 8. There …………. lots of orange juice in the fridge. 9. …………. there a living room, two bedrooms in your house? 10. There …………. twenty-two benches, thirty-eight desks, and fifteen bookcases in the school.