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7,429 has 4 digits
it: 7, 4, 2, 9
264 has 3 digits
it: 2, 6, 4
1. There are four digits in the number 7,429.
2. They are seven, four, two and nine in the number 7,429.
3. The number 7,429 is odd. Because the number end in 9.
4. There are three dgits number in the number 264.
5. They are two, six and four in the number 264.
6. The number 264 is even. Because the number end in 4.
Vãi There are a total of $8\times 7\times 6\times 5\times 4=67,\!200$ ways to form a 5-digit number with distinct digits out of 0, 1, 2, 3, 4, 5, 6, 7. We claim that these can be grouped into $\binom{5}{2}\cdot 2=20$ pairs, where each pair adds up to 7777. The pairs are $(0, 7777), (1, 7776), \ldots, (4, 7773)$ and $(5, 7772), \ldots, (7, 7770)$. Thus, the sum of all the possible numbers is $20\cdot 7777=\boxed{155,540}.$ đó ko biết đúng hay sai nhé
1. What is one the most popular sport in Autumn?
...One of the most popular kinds of sport is football................................................................................................................................................
2. What is the one the most popular sport in winter ?
.......In winter the most popular kind of sports is basketball. ............................................................................................................................................
3. Do American skiing and skating?
Many people in Americam ike skiing and skatting...................................................................................................................................................
4. When are the most professional baseball games played?
.....It is warm during the months of the June July and August
..............................................................................................................................................
5. What is the weather during the months of June, July and August?
...................................................................................................................................................
Chào em, em tham khảo nhé!
1. What is one of the most popular sport in Autumn?
One of the most popular kinds of sports in Autumn is football.
2. What is the one the most popular sport in winter?
In winter the most popular kind of sports is basketball.
3. Do American skiing and skating?
Yes, they do.
4. When are the most professional baseball games played?
The most important professional baseball games are played during summer.
5. What is the weather during the months of June, July and August?
It is warm during the months of June, July and August.
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My house in the country is very big and beautiful.My house has two floors inside it has 3 room rings is living room 3 bedrooms 1 kitchen and 2 bathrooms inside the living room a television with two lights on a very big picture taking pictures of my family. My bedroom has a pink bed and three lamps but also buys me an alarm clock to keep at the table.In the kitchen there is a gas stove and a table with 6 chairs and my favorite is the refrigerator near the gas stove. the bathroom has a mirror, a bathtub and a washbasin .I love this house very much.My family is very happy
- Badminton
(cầu lông)
- 2 players
(2 người chơi)
- I play it three times a week
(Tôi chơi 3 lần một tuần.)
- 2 racquets and 1 birdie/ shuttlecock
(2 cây vợt và một quả cầu)
Finish each of the following sentences in such a way that it means exactly the same as the sentence printed before it.
1, It is essential that you do your homework before going to school.
=> You must ..............do your homework before going to school.............
2, It is necessary for us to be present at the class discussion on Saturday.
=> We must .................be present at the class discussion on Saturday............
3, Ha Noi is large, Bangkok is large ang Tokyo is the largest.
=> Tokyo is ..............the largest of the tree cities.................
4, It is wrong of us to throw rubbush.
=> We mustn't ..............throw rubbish................
5, How many apples doea she want?
=> How many apples would .......she ................?
6, Learning how to use a computer is very easy.
=> It is .............easy to learn how to use a computer................
7, He drives very carefully.
=> He is ..........a careful driver...............
8, Student at our school take part in a lot of outdoor activities.
=> Students at our school do .........a lot of outdoor activities...........
9, I find it difficult to find a better solution to that problem.
=> I have ..................a difficulty in finding a better solution to that problem...............
10, Lan is the oldest of the three sisters.
=> Lan has .............two younger sisters.............
223 nha bạn chắc chắn lun đó
cho mk 1 ik nha
223 nha bạn chắc chắn lun đó
cho mk 1 ik nha