Quan sát 1 cây đàn ghi ta độ cao của âm phụ thuộc vào các yếu tố nào

-(-23)+(-36)+|57|-(-29)-35 Giải giúp vs ạ

rewrite the following sentences 1.the boys made a fire by our camps a fire............................................................. 2.How many motobikes does vietnam import each year? How many ............................................................................... 3.They repaired ur desk during the weekend Our .................................................................................. 4. Now the publisher can not publisher the book. Now .....................................................................................

Tìm gtnn x^2-4x+25 Cho a,b,c,d,thỏa mãn a+b=c+d,a^2+b^2=c^2+d^2 CMR a^2013+b^2013=c^2013+d^2013

Giúp mình câu này với mọi người ơi

giúp mình với. khái quát đặc điểm tự nhiên của đông nam á

Cho tam giac ABC Mla trung diem cua AC.Tren tia doi cua tia MB lay diem D sao cho MB=MD.CMR a)tam giac AMB=tam giac CMD b)AB//CD c)goc ABC=goc ADC

dac diem cau tao hoat dong cac loai mo

combine these sentences with who,whom,which 1,i thanked the woman.she helped me .................................................. 2,she is the most intelligent woman.i've ever met this woman .............................................................. 3,the doctor is famous.you visited him yesterday 4,do you know the music?it is being played on the radio 5,these children are orphans.she ia taking care of these children 6,she couldn't come to the party.this is pity 7,who is the woman?we met her here last year 8,try to read the book.i gave it to you yesterday 9,a typhoon is a violet tropical storm.it can cause great destruction 10,her mother listened to the news on tv .she was interested in weather forecasts 11,hoa took some change.she wanted to buy some drink 12,the boys are interested in football.it is a popular game all over the world 13,my classmate had so much fun at the carnival.they wanted to see it again 14,we visited the monument.it was built a hundred years ago 15,minh went back home.he forgot to turn off the faucet 16,mai wants to drink some medicine .she has a headache 17,children like to eat cake.it can cause toothache if they have too much everyday 18,her mom made a delicious for the family.she was a cook in a restaurant 19,the boy gave his parents big hugs before he left.he went abroad to study giúp vs ạ!!!!!

giải hộ e phương trình sau với ạ: câu b