a (0,125)3.83
b (-39)4\(\div\)134
Những câu hỏi liên quan
1. Tìm y :
Y x 7:5 + 4x 8 = 134
2. Tính nhanh
\(\dfrac{1}{4}\): 0,25 - \(\dfrac{1}{8}\) : 0,125 + \(\dfrac{1}{2}\) : 0,5 -\(\dfrac{1}{10}\)
1)\(y\times7:5+4\times8=134\)
\(\Leftrightarrow y\times7:5+32=134\)
\(\Leftrightarrow y\times7:5=102\)
\(\Leftrightarrow y\times7=510\)
\(\Leftrightarrow y=72,86\)
2) \(\dfrac{1}{4}:0,25-\dfrac{1}{8}:0,125+\dfrac{1}{2}:0,5-\dfrac{1}{10}\)
\(=0,25:0,25-0,125:0,125+0,5:0,5-\dfrac{1}{10}\)
\(=1-1+1-\dfrac{1}{10}\)
\(=\dfrac{9}{10}\)
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I don't think I'll go .......... now. It's too cold.
A. outdoors
B. inside
C. outside
D. A & C
Xem chi tiết
D, A & C
I don't think I'll go outdoor ( outside) now. It's too cold.
=> Tôi không nghĩ tôi sẽ đi ngoài trời bây giờ. Nó quá lạnh.
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a) (0,125)mũ 3. 8 mũ 3
b) (-39)mũ 4: 13 mũ 4
a) 0,1253.83
=(0,125.8)3
=13
=1.
b)(-39)4:134
=394:134
=(39:13)4
=34
=81
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a)0,1253 . 83 = (0,125 . 8)3 = 13 = 1
b) (-39)4 : 134 = ((-39 ): 13 )4 = 34 = 81
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19 tháng 8 2023 lúc 9:32
\(120 + (135 \div x - 13) \times7=134\)
\(11\times(x-6)=4\times x+11\)
a: =>7(135:x-13)=14
=>135:x-13=2
=>135:x=15
=>x=9
b: =>11x-66-4x=11
=>7x=77
=>x=11
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\(120+\left(135:x-13\right)\cdot7=134\)
\(\Rightarrow\left(135:x-13\right)\cdot7=134-120\)
\(\Rightarrow\left(135:x-13\right)\cdot7=14\)
\(\Rightarrow135:x-13=14:7\)
\(\Rightarrow135:x=2+13\)
\(\Rightarrow135:x=15\)
\(\Rightarrow x=135:15\)
\(\Rightarrow x=9\)
_______________
\(11\cdot\left(x-6\right)=4\cdot x+11\)
\(\Rightarrow11\cdot x-66=4\cdot x+11\)
\(\Rightarrow11\cdot x-4\cdot x=11+66\)
\(\Rightarrow7\cdot x=77\)
\(\Rightarrow x=77:7\)
\(\Rightarrow x=11\)
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\(a,120+\left(135\div x-13\right)\times7=134\)
\(\Rightarrow\left(135\div x-13\right)\times7=14\)
\(\Rightarrow135\div x-13=2\)
\(\Rightarrow135\div x=15\)
\(\Rightarrow x=135\div15=9\)
\(b,11\times\left(x-6\right)=4\times x+11\)
\(\Rightarrow11\times x-66=4\times x+11\)
\(\Rightarrow11\times x-4\times x=66+11\)
\(\Rightarrow\left(11-4\right)\times x=77\)
\(\Rightarrow7\times x=77\Leftrightarrow x=11\)
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Giúp mình với
Ex1 : complete the sentences. The first has been done for you as an example.
1.( example) A : In 20 yearstime, youll have a big house (No, palace)
B: No, you wont, Youll have a palace
2. A: In 50 years, this schoolll have 2.000 students (No, everyone will study at home)
B :________________________________________________
3. A: Peterll play for England one day. (No, Wales)
B: _______________________________________
4. A: Jackll pass all his exams...
Đọc tiếp
Giúp mình với
Ex1 : complete the sentences. The first has been done for you as an example. 1.( example) A : In 20 years'time, you'll have a big house (No, palace) B: No, you won't, You'll have a palace 2. A: In 50 years', this school'll have 2.000 students (No, everyone will study at home) B :________________________________________________ 3. A: Peter'll play for England one day. (No, Wales)
B: _______________________________________ 4. A: Jack'll pass all his exams this year. ( No, most of ) B : ________________________________ 5. A: In 5 years' time, I'll be a poor artist. (No, rich and famous)
B: ________________________________________ 6. A: In 10 years' time, you'll be my assistant (No, manager) B : _____________________________________ Ex2 : Đặt câu hỏi với từ in đậm Our class has Geography on Monday -> _______________________________
2. A: In 50 years', this school'll have 2.000 students (No, everyone will study at home)
B : no, it won't. everyone will study at home
3. A: Peter'll play for England one day. (No, Wales)
B: No, he won't. He'll play for Wales one day. 4. A: Jack'll pass all his exams this year. ( No, most of ) B : No, he won't. 5. A: In 5 years' time, I'll be a poor artist. (No, rich and famous)
B: No, I won't. I'll ba a rich and famous artisr. 6. A: In 10 years' time, you'll be my assistant (No, manager) B : No, you won't. You'll be my manager. Ex2 : Đặt câu hỏi với từ in đậm Our class has Geography on Monday -> ___What subject does your class have on Monday?
B: No, he won't. He'll play for Wales one day. 4. A: Jack'll pass all his exams this year. ( No, most of ) B : No, he won't. 5. A: In 5 years' time, I'll be a poor artist. (No, rich and famous)
B: No, I won't. I'll ba a rich and famous artisr. 6. A: In 10 years' time, you'll be my assistant (No, manager) B : No, you won't. You'll be my manager. Ex2 : Đặt câu hỏi với từ in đậm Our class has Geography on Monday -> ___What subject does your class have on Monday?
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i don't know
but i study soloution 6
i don't study gramar builder 6
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. Khoanh tròn đáp án đúng
1. When ____________ the school?
A)have you joined
B)did you joined
C)did you join
D)have you ever joined
2. _____________in England?
A)Did you ever worked
B)Have you ever worked
C)Worked you
D)Didnt you have worked
3.Thats the best speech _________
A)I never heard
B)I didnt hear
C)I used to hear
D)Ive ever heard
4. Hes the most difficult housemate _____________________
A)I never dealt with.
B)I never had to deal with.
C)Ive ever had to deal with.
D)...
Đọc tiếp
. Khoanh tròn đáp án đúng
1. When ____________ the school?
A)have you joined
B)did you joined
C)did you join
D)have you ever joined
2. _____________in England?
A)Did you ever worked
B)Have you ever worked
C)Worked you
D)Didn't you have worked
3.That's the best speech _________
A)I never heard
B)I didn't hear
C)I used to hear
D)I've ever heard
4. He's the most difficult housemate _____________________
A)I never dealt with.
B)I never had to deal with.
C)I've ever had to deal with.
D)I've never had to deal with
5.
______ to him last week.
A)I spoke
B)I've already spoken
C)I didn't spoke
D)I speaked
6.
_____a contract last year and it is still valid.
A)We have signed
B)We signed
C)We haven't signed
D)We have sign
7.
______ from a business trip to France.
A)I come back
B)I came back
C)I never came back
D)I've just come back
8. Prices ________ in 1995 but then _____in 1996.
A)rised_falled
B)rose_fell
C)have risen_have fallen
D)rose_have fallen
9. You____________to a word____________
A)listened_I haven't said
B)didn't listen_I say
C)listened_saying
D)haven't listened_I've said back
10. I can't believe that ________________ the news
A)you haven't read
B)you didn't read
C)you don't read
D)you read not.
. Khoanh tròn đáp án đúng
1. When ____________ the school?
C)did you join
2. _____________in England?
B)Have you ever worked
3.That's the best speech _________
D)I've ever heard
4. He's the most difficult housemate _____________________
C)I've ever had to deal with.
5.______ to him last week.
A)I spoke
6._____a contract last year and it is still valid.
B)We signed
7.______ from a business trip to France.
D)I've just come back
8. Prices ________ in 1995 but then _____in 1996.
B)rose_fell
9. You____________to a word____________
D)haven't listened_I've said back
10. I can't believe that ________________ the news
A)you haven't read
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Khoanh tròn đáp án đúng
1. When ____________ the school?
A)have you joined
B)did you joined
C)did you join
D)have you ever joined
2. _____________in England?
A)Did you ever worked
B)Have you ever worked
C)Worked you
D)Didn't you have worked
3.That's the best speech _________
A)I never heard
B)I didn't hear
C)I used to hear
D)I've ever heard
4. He's the most difficult housemate _____________________
A)I never dealt with.
B)I never had to deal with.
C)I've ever had to deal with.
D)I've never had to deal with
5.
______ to him last week.
A)I spoke
B)I've already spoken
C)I didn't spoke
D)I speaked
6.
_____a contract last year and it is still valid.
A)We have signed
B)We signed
C)We haven't signed
D)We have sign
7.
______ from a business trip to France.
A)I come back
B)I came back
C)I never came back
D)I've just come back
8. Prices ________ in 1995 but then _____in 1996.
A)rised_falled
B)rose_fell
C)have risen_have fallen
D)rose_have fallen
9. You____________to a word____________
A)listened_I haven't said
B)didn't listen_I say
C)listened_saying
D)haven't listened_I've said back
10. I can't believe that ________________ the news
A)you haven't read
B)you didn't read
C)you don't read
D)you read not.
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1. b
2.b
3.d
4.c
5.b
6.a
7.d
8.c
9.a
10.a
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Tính tổng S= 1 + 0,5 + 0,25 + 0,125 + 0,0625 + 0,03125 + ... .
\(S=1+0,5+0,25+0,125+0,0625+0,03125+...\)
\(S=1+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}+\frac{1}{32}+...\)
\(2S=2+1+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}+...\)
\(2S-S=\left(2+1+\frac{1}{2}+\frac{1}{4}+...\right)-\left(1+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+...\right)\)
\(S=2-...\)
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1/ Jane can swim further than I can.
) I cant ..................................................................................
2/ We didnt do the test as quickly as Linh.
) Linh did ..................................................................
3/ Peter cant run as fast as Tim.
) Tim runs ...................................................................................
4/ John speaks French more fluently than I do.
) I cannot....................................................
Đọc tiếp
1/ Jane can swim further than I can.
=) I can't ..................................................................................
2/ We didn't do the test as quickly as Linh.
=) Linh did ..................................................................
3/ Peter can't run as fast as Tim.
=) Tim runs ...................................................................................
4/ John speaks French more fluently than I do.
=) I cannot.............................................................
5/- Thuy is a more fluent French speaker than Phong.
=) Thuy speaks French ................................
6/ He plays football better than me.
=) I don't ..................................................................................
7/ Mrs Hoa doesn't work as hard as her husband.
=) Mrs Hoa 's husband works ...........................
8/ They answered the teacher's question yesterday more intelligently than us.
=) We didn't ......................................................................................................................................
9/ Hai couldn't listen to the teacher yesterday as attentively as his friend did.
=) Hai's friend ............................................................................................................................
1/ Jane can swim further than I can.
=) I can't swim as far as Jane.
2/ We didn't do the test as quickly as Linh.
=) Linh did the test more quickly than we did .
3/ Peter can't run as fast as Tim.
=) Tim runs faster than Peter.
4/ John speaks French more fluently than I do.
=) I can not speak French as fluently as Jone
5/- Thuy is a more fluent French speaker than Phong.
=) Thuy speaks French more fluently than Phong do.
6/ He plays football better than me.
=) I don't play football as good as he.
7/ Mrs Hoa doesn't work as hard as her husband.
=) Mrs Hoa 's husband works harder than her.
8/ They answered the teacher's question yesterday more intelligently than us.
=) We didn't answer the teacher's question as intelligent as them.
9/ Hai couldn't listen to the teacher yesterday as attentively as his friend did.
=)Hai's friend listened to the teacher yesterday more attentive than he did.
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Không sử dụng máy tính, hãy tính :
a) \(\log_2\dfrac{1}{8}\)
b) \(\log_{\dfrac{1}{4}}2\)
c) \(\log_3\sqrt[4]{2}\)
d) \(\log_{0,5}0,125\)
a) =
= -3.
b) =
=
.
hoặc dùng công thức đổi cơ số : =
=
=
.
c) =
=
.
d) =
= 3.
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