5
A
B
C
D
6
A
B
C
D
7
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B
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8
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B
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D
9
A
B
C
D
10
A
B
C
D
11
A
B
C
D
12
A
B
C
D
13
A
B
C
D
14
A
B
15
A
B
16
A
B
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ab16 =ab +1993
=ab x100 +16 =ab +1993
=ab x100 - ab =1993 -16
=ab x99 =1977
ab =?
\(\overline{9abcd}-\overline{abcd7}=90000+\overline{abcd}-\overline{abcd0}-7=51104\)
\(89993+\overline{abcd}\left(1-10\right)=51104\)
\(89993-51104=-\overline{abcd}\left(-9\right)\)
\(38889=9\overline{abcd}\)
\(\overline{abcd}=4321\)
Vậy \(\overline{abcd}=4321\)
Theo đề bài , ta có :
10abcd +7 + 864 = 70000 +abcd
9abcd = 70000-864-7
9abcd = 69129
abcd= 69129 / 9
=7681
vậy abcd =7681
Ta có abcd7 +864 =7abcd
=>abcd*10 +7 +864= 70000 +abcd
=>9*abcd=69129
=>abcd=7681
Đổi 16m54cm = 16,54m
Chi vi hình chữ nhật là: (16,54 + 10) \(\times\) 2 = 53,08 (m)
Diện tích của hình chữ nhật là: 16,54 \(\times\) 10 = 165,4 (m2)
Vậy chu vi của hình chữ nhật là 53,08 m
Diện tích của hình chữ nhật là 165,4 m2
Đổi: \(16m54cm=16,54m\)
Chu vi hình chữ nhật:
\(\left(16,54+10\right)\times2=\text{53.08}\left(m\right)\)
Diện tích hình chữ nhật:
\(16,54\times10=165,4\left(m^2\right)\)
11. Tom told us that sometimes he had difficulty _______ his feelings. A. expressing B. communicating C. sending D. talking *
A
B
C
D
12. My teacher told me that I _______attend the math course for the higher level programme that I _______for. A. can’t – apply B. couldn’t – apply C. can’t – applied D. couldn’t – had applied *
A
B
C
D
13. I asked him ________ but he said nothing. A. what the matter was B. what was the matter C. the matter was what D. what’s the matter was *
A
B
C
D
14. My closest friend is not very _________ and she likes having a small friend group but I like talking with a lot of people and hanging out. A. society B. sociable C. social D. socialist *
A
B
C
D
15. Mi asked what information she _______ that assignment. A. needs to be done B. needed doing C. need to do D. needed to do *
A
B
C
D
16. James _______ him up when the bus reached the square. A. told me wake B. asked me to wake C. said me to wake D. requested me waking *
A
B
C
D
17. Ann was raised very ________on her parents, and she was _______ that she wouldn’t live on her own afterwards. A. dependent - worry B. dependent – worried C. independent - worry D. independent - worried *
A
B
C
D
18. Susan needs someone to show her how to ________ her anxiety and depression. A. empathise B. try C. succeed D. manage *
A
B
C
D
19. I wonder ______ we’ll catch the bus ________we’ll take a taxi. A. if - and whether B. whether - or that C. if - or that D. whether - or whether *
A
B
C
D
20. The advice columnist said, “It sounds like the problem is not your appearance but the ________ you see yourself.” A. route B. distance C. way D. behavior *
A
B
C
D
5. B
6. C
7. C
8. A
9. D
10. B
11. C
12. C
13. B
14. True
15. False
16. True
\(_{\text{sai cho mk xl}}\)