làm giúp bài VII ạ
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VII.
36. are
37. are studying
38. plays
39. is playing
40. stay
VIII.
41. sai đề k nhỉ? these shoes là số nhiều cơ mà, sao lại có does, it, costs đc?
42. C. hang -> hanging (be interested in N/ Ving)
43. B. bookshelf-> bookshelves
IX.
44. C
45. B
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a) \(\dfrac{13}{15}< \dfrac{14}{15}\) ( vì 13 < 14 )
b) Ta có:
\(\dfrac{2}{3}=\dfrac{2\times3}{3\times3}=\dfrac{6}{9}\)
Vì 6 = 6 nên \(\dfrac{6}{9}=\dfrac{6}{9}\)
Vậy \(\dfrac{2}{3}=\dfrac{6}{9}\)
c) Ta có:
\(\dfrac{4}{7}=\dfrac{4\times6}{7\times6}=\dfrac{24}{42}\)
\(\dfrac{5}{6}=\dfrac{5\times7}{6\times7}=\dfrac{35}{42}\)
Vì 24 < 35 nên \(\dfrac{24}{42}< \dfrac{35}{42}\)
Vậy \(\dfrac{4}{7}< \dfrac{5}{6}\)
d) Vì 9 < 13 nên \(\dfrac{4}{9}>\dfrac{4}{13}\)
Vậy \(\dfrac{4}{9}>\dfrac{4}{13}\)
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everybody
over a billion dolars
relieve the symtoms
no there isn't
VI
1 Everybody can get the common cold
2 A billion dollars is spent on cold medicine every year
3 This medicine can relieve the symptoms
4 No, It can't
5 No, there isn't
VII
1 What is your brother's height?
2 Because Lan was sick, she was absent from class yesterday
3 How heavy is the parcel?
4 Where do you live?
5 How much is you weight last year?
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6:
\(2^{225}=\left(2^3\right)^{75}=8^{75}\)
\(3^{150}=\left(3^2\right)^{75}=9^{75}\)
mà 8<9
nên \(2^{225}< 3^{150}\)
4: \(\left|5x+3\right|>=0\forall x\)
=>\(-\left|5x+3\right|< =0\forall x\)
=>\(-\left|5x+3\right|+5< =5\forall x\)
Dấu = xảy ra khi 5x+3=0
=>x=-3/5
1:
\(\left(2x+1\right)^4>=0\)
=>\(\left(2x+1\right)^4+2>=2\)
=>\(M=\dfrac{3}{\left(2x+1\right)^4+2}< =\dfrac{3}{2}\)
Dấu = xảy ra khi 2x+1=0
=>x=-1/2
1. C
2. A
3. D
4. A
5. C
1-a
2-b
3-c
4-d
5-a