Peter is a gentle boy. He's kind and cares about everybody.

*Theo ý kiến của mình là vậy.

=> caring

- caring (adj): chu đáo,  tốt bụng, biết quan tâm

Tích của số chia và thương là: 10-3=7=7x1

=>Số chia là 7, thương là 1

\(\left(4x-5\right)\left(\dfrac{5}{4}x-2\right)=1\dfrac{1}{3}\)

=>\(5x^2-8x-\dfrac{25}{4}x+10-\dfrac{4}{3}=0\)

=>\(5x^2-\dfrac{57}{4}x+\dfrac{26}{3}=0\)

\(\Delta=\left(-\dfrac{57}{4}\right)^2-4\cdot5\cdot\dfrac{26}{3}=\dfrac{1427}{48}>0\)

=>Phương trình có hai nghiệm phân biệt là:

\(\left[{}\begin{matrix}x=\dfrac{\dfrac{57}{4}-\sqrt{\dfrac{1427}{48}}}{2\cdot5}=\dfrac{\dfrac{57}{4}-\dfrac{\sqrt{4281}}{12}}{10}=\dfrac{171-\sqrt{4281}}{120}\\x=\dfrac{171+\sqrt{4281}}{120}\end{matrix}\right.\)

1) Ta có: \(B=2019\times2022\)

\(=\left(2020-1\right)\times\left(2021+1\right)\)

\(=\left(2020-1\right)\times2021+\left(2020-1\right)\)

\(=2020\times2021-2021+2020-1\)

\(=2020\times2021-2\)

\(< 2020\times2021=A\)

Vậy \(B< A\)

2) Điều đó không thể xảy ra được, vì nếu gọi 7 số chưa biết theo thứ tự là \(a,b,c,d,e,f,g\) và tổng 3 số ở 3 ô bất kì bằng 17 thì phải có:

 \(a+b+4=a+b+c=a+b+d=a+b+e=...=a+b+8\)

 Vậy thì rõ ràng vô lí vì từ chỗ này suy ra \(4=8\left(??\right)\)

 Nên bạn xem lại đề nhé.

đề nó cho thế ạ cô bảo sai chắc ẫn phải làm ra đáp án

$(17+7).\{460-[10.(64-4^3):2]\}$

$=24.\{460-[10.(64-64):2]\}$

$=24.(460-0)$

$=24.460=11040$

11040

     tk nhé

Vung Tau city is located in Southeast Vietnam. It is a charming city to visit, with a long beach and numerous small mountains surrounding it. On weekends, people love to come here for relaxation because it’s quite quiet and clean. The main attraction for visitors is an old lighthouse, which was built in 1907. From here, you can see all the city’s sights. The seafood here is very fresh, delicious, and affordable. You can order your food, and it will be cooked right in front of you. However, what I like most about Vung Tau is its temples and pagodas. I can spend a lot of time wandering around and admiring them. If you have the chance, come here, and I’m sure you won’t be disappointed.

tk nhé

The first time I visited Nha Trang was three years ago. It was a memorable and interesting trip. Nha Trang, the capital of Khanh Hoa province, boasts one of the most popular municipal beaches in all of Vietnam. The natural beauty in Nha Trang is truly captivating, with waves crashing against the cliffs, the gentle sea breeze, pristine white sands, and turquoise waters, all combining to create a stunning landscape. During my visit to Nha Trang, I made it a habit to wake up early each morning, taking walks along the beach to breathe in the fresh sea air and savor the sunrise over the water.

One particular attraction that enchanted me three years ago, and still does, is the cluster of small islands off the coast. Hon Tre is the largest of these islands. As the name suggests, Monkey Island is home to hundreds of wild monkeys. Yen Island is famous for its swifts’ nests. In my opinion, Nha Trang is one of the greatest holiday destinations. I’m hoping to get the chance to return.

1. We are listen to music in the car right now. ➝ listening
2. They not studying for the exam at the moment. ➝ aren't studying
3. He is playing volleyball with his friends in the park.
4. Is you watching TV now. ➝ Are
5. The students are attend the class today. ➝ attend
6. Are he play video games at the moment? ➙ Is he playing 
7. He read a book in his room this evening. ➝ is reading
8. She not listen to the teacher in the classroom. ➝ doesn't listen

Ta có: \(22\equiv1\left(\text{mod }3\right)\Rightarrow22^{22}\equiv1^{22}\equiv1\left(\text{mod }3\right)\)

\(\Rightarrow22^{22}-1\equiv0\left(\text{mod }3\right)\)

hay \(22^{22}-\text{1 } \vdots \text{ 3}\)

giup minh voi

thanks

 Số này thậm chí còn không chia hết cho 2 thì làm sao mà chia hết cho 6 được? Bạn xem lại đề nhé.

Lời giải:

$BCNN(m,n) = 2^4.3^5.5.7^6.11^4$

$ BCNN (m,n) = 2^4.3^5.5.7^6.11^4$