Số số hạng của dãy số là:

10-0+1=11(số)

Tổng của dãy số là: \(\left(10+0\right)\times\frac{11}{2}=10\times\frac{11}{2}=5\times11=55\)

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Olm chào em, cảm ơn đánh giá của em về chất lượng bài giảng của Olm, cảm ơn em đã đồng hành cùng Olm trên hành trình tri thức. Chúc em học tập hiệu quả và vui vẻ cùng Olm em nhé!

ko tuyệt vời j hết

Bài hát "Múa Lân" do hai nhạc sĩ Y Vân và Phùng Sử dụng cùng sáng tác. 

tik cho mik nha

1.runs

2.flies

3.cries

4.fixes

5.does

1.runs

2.flies

3.cries

4.fixes

5.does

6.watches

7.cooks

8.eats

9.writes

10.catches

11.kisses

12.likes

13.plays

14..dances

15.tries

16.studies

17.buys

18.carries

19.swims

20.wears

1 - 2 + 3 - 4 + 5 - 6 + 7 - 8 + 9

= (9 - 8) + (7 - 6) + (5 - 4) + (3 - 2) + 1

= 1 + 1 + 1 + 1 + 1

= 1 x 5

= 5

5

Olm chào em, cảm ơn đánh giá của em về chất lượng bài giảng của Olm, cảm ơn em đã đồng hành cùng Olm trên hành trình tri thức. Chúc em học tập hiệu quả và vui vẻ cùng Olm em nhé!

kkgkhkg

• bus (N) → buses
• go (V) → goes
• do (V) → does
• watch (V) → watches
• visit (V) → visits
• brush (V) → brushes
• piano (N) → pianos
• video (N) → videos
• tomato (N) → tomatoes
• listen (V) → listens
• octobus (bạn viết nhầm, đúng phải là octopus) → octopuses (hoặc octopi, nhưng thông dụng hơn là octopuses)
• pencil (N) → pencils
• kilo (N) → kilos
• snake (N) → snakes
• play (V) → plays
• wash (V) → washes
• touch (V) → touches
• looks (V) → (từ gốc phải là look) → looks
• box (N) → boxes
• drink (V) → drinks

1.bus -> buses

2.go -> goes

3.do -> does

4.watch -> watches

5.visit -> visits

6.brush -> brushes

7.piano -> pianos

8.video -> videos

9.tomato -> tomatoes

10.listen -> listens

11.octobus -> octopuses

12.pencil -> pencils

13.kilo -> kilos

14.snake -> snakes

15.play -> plays

16.wash -> washes

17.touch -> touches

18.looks -> looks

19.box -> boxes

20.drink -> drinks

Đang học thì mẹ mắng

hhhhhhhhhhhhhhhhhhhhhhhh

mau giao ha

???????

mìn họ ở ngoài ớ

là sao

bruh gì vậy