giúp với m.n
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giúp em với mn ơi,e đag cần gấp, mn giúp em với ạ
31 tháng 10 2021
a: Xét ΔBAC có
D là trung điểm của AB
M là trung điểm của AC
Do đó: DM là đường trung bình của ΔABC
Suy ra: DM//BC và \(DM=\dfrac{BC}{2}=3.5\left(cm\right)\)
13 tháng 11 2021
Bài 1
Hình 1 Tam giác ABC = ADE
Bài 2
Hình 2 Tam giác MRQ = NRS = QPT = OST
NM
6
27 tháng 6
1.I think you ought to give up playing video games. (should)
-->I think you should give up playing video games.
2.It's necessary for me to finish the work on time. (have to)
--->I have to finish the work on time.
3.It wasn't necessary for you to clean that car. (have to)
--->You didn't have to clean that car.
4.It was quite unnecessary for you to adopt a green lifestyle. (have to)
---->You didn't have to adopt a green lifestyle.
5.It was careless of you to leave the windows open last night. (shouldn't)
----->You shouldn't have left the windows open last night.
6.It is advisable for each member in the family to share the housework equally. (should)
---->Each member in the family should share the housework equally.
7.You are required to come back home before 10 p.m. (must)
--->You must come back home before 10 p.m.
8.Lina is advised to prepare carefully in the morning. (should)
----->Lina should prepare carefully in the morning.
9.Tu is responsible for picking up litter. (have to)
------>Tu has to pick up litter.
27 tháng 6
1.You are required to ask your parents for permission before staying out late. (must)
You must ask your parents for permission before staying out late.
2.I think you ought to give up smoking immediately. (should)
I think you should give up smoking immediately.
3.It is not a good idea for me to stay up late. (shouldn't)
I shouldn't stay up late.
4.It wasn't necessary for you to send these letters. (have to)
You didn't have to send these letters.
5.It was unnecessary for Tim to finish the work. (have to)
Tim didn't have to finish the work.
6.It was careless of you to leave your children alone at home. (shouldn't)
You shouldn't have left your children alone at home.
Bằng 1 cách nào đó 1 câu hỏi từ 2023 ở đây và tôi vẫn trả lời nó sau 1 năm :v
NL
3
ML
1
29 tháng 1
3.10:
Hồng đến lúc:
10h40p+15p=10h55p
Hương phải đợi Hồng trong:
10h55p-10h20p=35p
3.9:
a: (3 giờ 25 phút-1 giờ 40 phút)*5
=(2 giờ 85 phút-1 giờ 40 phút)*5
=(1 giờ 45 phút)*5
=5 giờ 225 phút
=8 giờ 45 phút
b: (25 phút 30 giây+1 giờ 58 phút 50 giây):2
=(24 phút 90 giây+118 phút 50 giây):2
=142 phút 140 giây:2
=71 phút 70 giây
=72 phút 10 giây
c: 3 giờ 25 phút+1 giờ 40 phút*5
=3 giờ 25 phút+5 giờ 200 phút
=8 giờ 225 phút
=11 giờ 45 phút
d: 25p30s+1h58p50s:2
=25p30s+118p50s:2
=25p30s+59p25s
=84p55s
e: 2 giờ 15 phút*3+3 giờ 45 phút*2
=6 giờ 45 phút+6 giờ 90 phút
=12 giờ 135 phút
=14 giờ 15 phút
KP
0
the living room have two armchairs , a coach and a table
how much does these apples cost
the red river is shorter than the mekong river
the museum is behide the school
what is the price of these apples
why don't we go to his party
1. The living room has two armchairs, a couch and a table.
2. How much do these apples cost?
3. The Red River is shorter than Mekong River.
4. The museum is behind the school.
5. What is the price of these apple?
6. Why don't we go to his party?