Wearing uniforms helps students feel....in many ways(equality)

Cho phương trình bậc hai: (m+1)x^2+ (2m+1)x + m – 1 = 0 (1) (m là tham số). Tìm giá trị của m để phương trình (1) có 2 nghiệm phân biệt. Gợi ý: Để phương trình (1) có 2 nghiệm phân biệt : { a khác 0 denta >0

giúp mk bài này với cho pt( ẩn x): x+1/x+2+a=x-1/x+2-a a. Giải pt khi a=0 b. Giải pt khi a=-3 c. Tìm các giá tri của a sao cho pt nhận x=3 làm nghiệm

Hãy tả một nghệ sĩ hài đang biểu diễn trên sân khấu(tả chú hoài linh nha)

Vật AB đặt trước thấu kính hội tụ, cho ảnh A'B' cách thấu kính bao nhiêu cm. Biết rằng: tiêu cự của thấu kính là 30cm và vật AB cách thấu kính một khoảng bằng 10 cm.

III.Write in passive voice: 1. My mother gave me a very good book on my birthday. __________________________________________________________________________ 2. Are you doing your exercises now? __________________________________________________________________________ 3. She has to correct the mistakes soon . __________________________________________________________________________ 4. The Greens are going to paint this house and these cars. __________________________________________________________________________ 5.Tam collected 4 kilos waste paper last Sunday. __________________________________________________________________________ 6. We have exported rice to many countries so far. 7. They speak their own languagues in Vietnam . __________________________________________________________________________ 8. Large number of tourists visit these tourist attractions annually. . __________________________________________________________________________ 9. Did the police find the missing girl? __________________________________________________________________________ 10. I bought a small plant and placed it in a corner of the room .

Tả giúp em bài này với ạ ( tả con trai nha)

I. FILL IN THE BLANKS USING THE WORDS IN THE BOX: 1.I went to Luciano Pavarotti’s opera show at the Sydney Opera House. 2. I’m going to have a picnic in ……………………………….. 3.My mom is going to visit the ………………………… in Paris. There are lots of beautiful paintings there. 4.Christine’s going to visit the …………………………………….in New York on holiday. 5.……………………………………………is one of the most famous landmarks in Japan . It’s the second the tallest building in Japan. 6.The…………………………….. is the central landmark of San Francisco. 7.Peter and Paul are going to Bangkok next week. They’re going to see beautiful temples and the …………………………. II. CIRCLE THE CORRECT WORDS 1. He / are going to visit the Golden Gate Bridge in San Francisco next week. 2. They am / are going to travel by plane. 3. My best friend is / are going to watch a movie tonight. 4. My parents is / are going to visit the Louvre Museum in Paris on holiday. 5. I am / is going to visit the Grand Palace in Bangkok for my summer vacation . 6. We are / is going to visit Hyde Park in London this weekend. 7. My family and I is / are going to climb the mountain on holiday. III. UNSCRAMBLE THE SENTENCES. 1. are / Where / you going to / you / on holiday / go / ? →Where are you going to go on holiday? 2. I am/ visit the Grand Palace/ going to/ for my summer vacation/ in Bangkok/ →………………………………………………………………………………. 3. you / going / What/ to / are / there ? / do / →………………………………………………………………………………. 4. do? else / you / going are / What / to →………………………………………………………………………………. 5. What / to buy / there ? / you/ going / are / →……………………………………………………………………………….

ai giúp em cả bài 5 với ạ toán đại trà nhé !

Hỏi tí tính A) (+15) +(+17) b)(-57)+25 c)12+(-12) d)15-25