Tìm x, biết: |x+1| + |x+2| + ... + |x+100| = 5050 *Giúp mk với ạ*

đoạn văn cảm nhận về văn bản bánh trôi nước (khoảng 10 câu gạch chân dưới một câu đặc biệt)

Mn giúp em vs ak em đang cần gấp

giúp mk nhé trl trc có phải lập hệ ko nhé x r mới giải ra nhé

289 = ? x ? Mong MOD ko xoá E ko bt thiệt sự

giups minhf caau nayf vs pleassssss pleasss pleassss

cho tam giác ABC với ba đường cao AA', BB', CC'. gọi H là trực tâm của tam giác đó. Chứng minh rằng $\frac{HA'}{AA'}$ + $\frac{HB'}{BB'}$ + $\frac{HC'}{CC'}$ = 1

Lâu r chắc chẳng còn ai nhớ tui 😢 fanart lại hình dưới nhoé, ko vi phạm luật hỏi đáp nhớ 👉👈

Choose the correct answer Last year we ...(1 )....have an expensive holiday so we decided to visit some friends, Brian and Ann, who happened to live by the sea. They... ( 2 )...to put us up for two weeks and as we always.. ( 3 ).....seeing them, It .........( 4 )...........to be a good idea. They asked us if we....... ( 5 ).......sleeping on the sofa, and said that they would... ( 6 )....to make us comfortable. We ... ( 7 )... get there by bus and when we arrived we could ... ( 8 ).... Brian and Ann sitting in the garden. They.. ........( 9 ).......to be glad to see us but it was obvious that they hadn’t ..( 10 ).......to see us. They said that they had.. ......11 )........to tell them when we were arriving and they... ( 12)........asking us how long we were going to stay. We couldn’t help feeling embarrassing so the next day we went home. 1 A: continued B: Couldn’t C: liked D: promised 2 A: offered B: admitted C: enjoyed D: intended 3 A: denied B: imagined C: enjoyed D: preferred 4 A: began B: seemed C: imagined D: expected 5 A: minded B: suggested C: wanted D: remembered 6 A: practice B: mean C: manage D: start 7 A: suggested B: tried C: managed D: started 8 A: watch B: see C: keep D: wait 9 A: intended B: pretended C: expected D: suggested 10 A: preferred B: forgotten C: promised D: expected 11 A: forgotten B: denied C: seemed D: chosen 12 A: loved B: wanted C: kept D: Couldn’t stand

Cho tgiac ABC vuông tại A có ^B=30 độ. Trên tia đối của tia AC lấy điểm D sao cho AD=AC 1)cm tgiac ABD=tgiacABC 2)tgiac BCD là tgiac đều