Giúp mình với ạ, hứa vote đầy đủ

Cho tam giác đồng dạng ABC và A'B'C' có tam giác ABC bằng tam giác A'B'C' = 90 độ và các đường cao tương ứng AH, AH' ( H,H' lần lượt thuộc BC,B'C'. Chứng minh rằng : 1) AB.A'B'+AC.A'C'=BC.B'C' ( . là nhân) 2) 1/AB.A'B' + 1/AC.A'C' = 1/ AH.A'H'

làm hộ mình bài 6 ...............

88.I (read)................that book once a day. 89.She (become).............a teacher in the future. 90.She (sew)..................a shirt at present. 91.I (be)..................there tomorrow. 92.He usually (buy)................flowers for her. 93.It often (not/rain)....................in December. 94.Look! She (ride).....................an elephant. 95.Michael Jackson (be)................. “King of Pop”. 96.It (rain)..........................tonight. 97.Mary (go).....................abroad next year. 98.If I (have)...........more time, I (read).............that book. 99.He (cut)........................those flowers every month. 100.Mr. Tom (teach)...............English at the moment. 101.They (not/be)........................my computers. 102.We (have)..........................a big party tonight. 103.A: What.............you (do)............ now? B: I(have)........................a bath. Giúp vs ạ có giải thik nha

a. She/like/ making clothes. ................................................................................... b. They/ not/ fond/ gardening. .................................................................................... c. We/ enjoy/ ice-skate. .................................................................................... d. She/ interested / arranging flowers? .................................................................................... e. Alex/ keen/ photos. .................................................................................... f. My mom/ not/ love/ bird watching. .................................................................................... g. Your parents/ hate/ playing / drums? ..................................................................................

Dùng tính chất viết thành lũy thừa với cơ số là số hữu tỉ và mũ khác 1, giải thích

Mọi người ơi giúp mình bài này với ạ mình cảm ơn hứa vote 5 sao

Vẽ đậu mầm/chibi/anime NL : Đừng tiếc 1,2 phút để nhận xét chữ viết của mình trong hình . Nhận xét xong rồi đưa ra ý kiến về chữ mình để mình chỉnh sửa nét chữ cho phù hợp

76.My teacher (come)......here if he (have)..........time. 77.The trees (grow).................very fast at the moment. 78.David seldom (sing)..................an English song. 79.I (help)................you if I (be)..............free. 80.Peter (borrow)..................your CDs tonight. 81.If she (ask)...........me, I (not/answer)...............her. 82.My mother often(tell)...........stories at night. 83.They (travel)............to Canada twice a year. 84.I (talk)................with him if he (phone)...............me. 85.He (stay).............up very late last night. 86.He (learn)...................French tonight. 87.Mr. Pike and Mr. Brown (leave).......................here next month. giúp vs ạ

Ex1: Choose the best answer Question 1. Hoa likes music. She often ______ to music in late evenings. A. listen B. Listening C. listens D. to listen Question 2. He goes swimming when he ____ free time. A. have B. is having C. has D. will have Question 3. My sister is very keen on swimming, and he goes swimming three _____ a week. A. time B. a time C. times D. timings Question 4. My mom _____ me every weekend without fail. A. is calling B. will call C. calls D. will be calling Question 5. My dad often _____ up late on Saturday mornings. A. got B. will get C. is getting D. gets Question 6. How ______ do you go to the library after school? A. often B. much C. many D. usually Question 7. ________ any other languages apart from English? A. Are you speaking B. Will you speak C. Do you speak D. Shall you speak Question 8. Eric, _______ hockey competitively or just for fun? A. do you usually play B. are you usually playing C. will you usually play D. have you usually played Question 9. Unfortunately, Simon _____ a day off very often. A. get B. doesn’t get C. isn’t getting D. won’t get Question 10. Mai loves cooking a lot because she often _____ food for her family and feels great to se other people enjoy her food. A. prepare B. preparing C. to prepare D. prepares Question 11. Who ______ after the children when you are away? A. looks B. look C. does look D. will be look Question 12. Doing morning exercise every day is good ____ your health. A. on B. for C. to D. at Question 13. Tom enjoys taking part ____ New Stars Football Club. A. in B. of C. after D. before Question 14. She often receives beautiful dolls _____ her grandma. A. of B. in C. from D. on Question 15. I’m proud to say that my son is very good ___ playing the guitar. A. about B. in C. on D. at