M.n giải dùm mình câu hỏi này nha

Diện tích hình tam giác có một cạnh là a và chiều cao tương ứng là h

b1 CaO+?HCl—>CaCl2+? b2 lập công thức hoá học với các hợp chất tạo bởi a) Al và O b)Na và CO3 giúp e

Các anh cj lớp trên giải hộ e vs ak câu đó cho dạng đúng của động từ là j ak ai giải giúp e thì e thanks trc ak

Quy đồng mẫu các phân số sau: $\frac{-5}{16}$; $\frac{7}{24}$; $\frac{-21}{56}$ làm theo kiểu bài giải như dưới:

câu 1: Bậc của đơn thức 0,25x^2 y^3 z là bao nhiêu? câu 2: tích của hai đơn thức -2/5xy^3 và - 15x^2y là bao nhiêu?

MN giải giùm mình với nha, có 11 câu thôi

Các bạn cố gắng giải cụ thể giúp mình nhé!!! Mình sẽ nhấn 5* ạ

mọi người làm từ câu 4 giúp em nha

II. Choose the correct word A, B, C or D for each gap to complete the following passage : Tim goes to junior high school in California. He is Hoa’s pen pal. His mother works ....(1)...home. She takes...(2)... of the family. Three mornings a week, she works part-time at a local supermarket. She and other women also cook lunch for homeless people once a week. His father works five days a week for about 40 hours. He has fewer...(3)...than his mother. His father has a...(4)...summer vacation. His family always ...(5)... to Florida on vacation. 1. A. in B. at C. on D. from 2. A. care B. part C. time D. place 3. A. day of B. days of C. day off D. days off 4. A. three- week B. three-weeks C. three weeks D. three week 5. A. go B. goes C. going D. is going III. Read the passage and answer these questions below. Yesterday when I was riding along a busy street, I saw an accident. A woman was knocked down when she crossed the street at a zebra crossing. Many people stopped to offer their help. A policeman arrived and asked a young man to telephone for an ambulance. While waiting for the ambulance, the policeman and some people tried to stop the bleeding. They used a handkerchief to cover the wound, then put pressure on it and held it tight. They tried to talk to her in order to keep her awake. After about ten minutes, the ambulance arrived and the woman was taken to the hospital. A. Answer the following questions: 1. When did the accident happen? 2. What did they do to stop the bleeding? 3. What did they try to talk to her for? PART C:WRITING I. Complete the second sentence so that it means the same as the sentence before : 1. we haven’t eaten this food since june. -> The last time we………………………………………………………………………… 2. He doesn’t like getting up early on cold days. -> He hates ……………………………………………………………………………… 3. People are cutting rice now. ->Rice……………………………………………………………………........................ 4. He enjoys watching football matches.. -> He is interested………………………………………………………..…………………… 5. It is not necessay to set off early today . -Youdon’t …………………………………………………………………….……… III. Make sentences using the words and phrases given : 1. would/you/ like / drink /cup /tea? ……………………………………………………………………………………………… 2. The students/ play /football/ ground /moment. ………………………………………………………………………………………………… 3. This tree / plant / myfarther / 2 years ago/./ ………………………………………………………………………………………………… 4. They/ already/ see/ that film/./ ………………………………………………………………………………………………… 5. He/ used / go/ picnic/ weekends/ last year/./ ………………………………………………………………………………………………… III. Rearrange the sentences using the following words : 1.with/They/their/out/friends/eat/love/to. ……………………………………………………. 2.often/to/does/come/How/boat/ the/the/ island? ……………………………………………………. 3 The US//ethnic groups/over/a/is/with/multi-cultural/80 …………………………………………………………….. 4.was/when/afairy/The/appeared/crying/girl. …………………………………………………….. 5.person/afraid/not/is/anything/Brave/of. ………………………………………………………………..