(-195).56 - 43.195 -195 (tính nhanh)

Giúp mh tl hết 15 câu nhé mh cảm ơn nhiều ạ

Giá trị biểu thức 2(x^2-1)+3x-2

Bài 1 cho hệ pt mx -y =1 1/2x -1/3y =334 tìm m để hpt vô nghiệm

Cho hỗn hợp gồm 5,6g cacbon và lưu huỳnh phản ứng với oxi hoàn toàn thấy thể tích oxi cần dùng là 6,72 lít ở đktc a.Viết PTHH b.Tính khối lượng mỗi chất có trong hỗn hợp ban đầu

Ex3.Put the correct form of the verbs in the simple present or present continuos 1.A.Where is Molly? B.She______(teed) her cat downst. 2.______(she/need)to go and sửa doctor? 3.She usually________(wash)the dishes affer. 4._________(your/sister/wear)sunglasses 5.He frequenthy________(do)yoga 6.We______(move)to canada in August. 7.My son _____(not practice)the pianovery day. 8.I_____(not like)to take selfies. 9.Megan_____(go)on holiday to comwall this summer. 10.When_____(the filim/start)? 11.I red in the news that they_____(build)anew spermarket intown. 12.Why______(she/usually/drive) so slowhy? Ex1Classify the following verbs.And add more verbs Wanted,played,helped,fitted,liked,needed,laughted,reme mbered,naked,stopped,talked,rentad,missed,studied,started,used,learned. /d/: /t/: /id/: Ex2.complete the sentenees 1.It/be/cloudy/yesterday -> 2.In 1990/we/move/to another city -> 3.When/you/get/the fisist gift? -> 4.She/not/go/to the church/five days ago -> 5.How/be/he/yesterday? -> 6.And Mr. James/come back home/and/have/lunch/last night? -> 7.They/happy /last holiday? -> 8.How/you/last holiday? -> 9.I/play/football/last/Sunday -> 10.My/mother/make/two/cake/four/day/ago. -> 11.Tyler/visit/his/grandmother/last/month. -> 12.Joni/go/zoo/five/day/ồ. -> 13.We/have/fun/yesterday. -> 14.My/father/not/at the office/the day/before/yesterday -> Ex3.Choose and put the verb on the corect tense Teach,cook,want,spend,ring,be,sleep,study,go,write 1.She_______out with her boyfriend last night 2.Laura______a meal yesterday afteronoon. 3.Mozart________more than 600 pieces of music. 4.I______tiết when I came home. 5.The bed was very cofortable so they_________very well. 6.Jamie passed the exam because he______very hard. 7.My father______the exam because he_________very hard. 8.Dave________to make fire but there was no wood. 9.The little boy ______hours on his room making his room making his toys. 10.The telephone_______several times and then stopped before I could answer it.

Làm giúp mik bài: 11,12,13,14,15 vs ạ thanks nhìu

tìm GTLN của Q=$\frac{-x+√x-2}{√x}$ (x $\geq$ 0,x$\neq$ 1) mình xin cảm ơn

Mọi người ơi giúp mình câu 10 với ạ. Mình đang cần gấp. Thank mọi người trước

"The Spy Return:"is a very ....... film about a wealthy man who visits Italy