Giúp mk với ạ 
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Những câu hỏi liên quan
KV
29 tháng 12 2022
a) ĐKXĐ:
x³ - 1 khác 0
x khác 1
b) A = (5x² + 5x + 5)/(x³ - 1)
= 5(x² + x + 1)/[(x - 1)(x² + x + 1)]
= 5/(x - 1)
Thay x = 7 vào A, ta được:
A = 5/(7 - 1)
= 5/6
Mn giúp mk với mấy câu này với ạ . mk cảm mơn ạ
DT
Đỗ Thanh Hải
CTVVIP
17 tháng 7 2021
1 send - will receive
2 do - will improve
3 find - will give
4 will go - has
5 will go- gets
6 doesn't phone - will leave
7 don't study - won't pass
8 rains - won't have to
9 won't be able - watch
10 can't move - isn't
11 study - will pass
V
giúp mk với ạ . mk cần rất gấp ạ . ngày mai 9h sáng mk nộp rồi ạ
0
DT
Đỗ Thanh Hải
CTVVIP
12 tháng 7 2021
1 me
2 too
3 done
doing
having
4 interested
5 as to
6 standing
when
7 helping
8 too
9 such
a
10 used
11 when
12 shouldn't
13 is - cost
ND
2
4 tháng 1 2022
Áp dụng tính chất của dãy tỉ số bằng nhau, ta được
\(\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{b-a}{4-3}=23\)
Do đó: a=69; b=92
V
violet
Giáo viên
3 tháng 5 2021
Chào em, em tham khảo nhé!
1. won't finish
2. had learnt
3. is
4. didn't rain
5. had gone
6. hadn't told
7. would understand
8. will throw
9. would be
10. will post
11. will go
12. is hitting
13. won't do
14. will make
15. will go
16. go
17. eat
18. was washed
19. will be built
20. was cleaned
Chúc em học tốt và có những trải nghiệm tuyệt vời tại hoc24.vn!
DT
Đỗ Thanh Hải
CTVVIP
14 tháng 7 2021
1 C => hers
2 B => will use
3 D => their
4 A => will be pedaling
5 A => travel
6 C => less
7 D => have they
8 D => than
9 A => worked
10 B => fewer
1. If she had had the money, she would have bought the house.
2. If he hadn’t eaten too much, he wouldn’t have suffered from obesity.
3. If she had seen him, she would have talked to him.
4. If Mary had studied, she would have passed the exam.
5. If she had read the newspaper, she would have seen the advertisement.
6. If you had taken your umbrella, you wouldn’t have got very wet.
7. If he hadn’t arrived late, he would have played in the party.
8. If Peter had loved his wife, he wouldn’t have treated her badly.
9. If he hadn’t swum in the pool for two hours, he wouldn’t have felt tired.
10. If they had applied for the job, they would have been interviewed.