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14 tháng 8 2016

 

1, Mount Everest is ……​the………… highest mount in the wall. 
2, I would like to buy ………a……… new clothes but I haven’t ……the………… money. 
3, Are there ………a……… letters for me today? 
Yes, there is only one from New York. 
4, I have got ……a………… little money left, let’s have dinner in …………the…… restaurant. 
5, My mother goes to …the…………… church in …………the…… morning and …the…………… afternoon goes to visit ………the……… friends. 
6, It takes me half ……a………… hour to get to work by ………a……… bus. 
7, What does ………the……… post office sell apart from stamps? 
8, I want to buy …an…………… envelope and …………the…… fifty thousand dong phone card. 
9, Viet would like to send his sister in ………the……… USA ………a……… letter. 
10, Go along this road and take ………the……… second turning on ………the……… left. 

 

14 tháng 8 2016

Điền a/an/the hoặc some :

1, Mount Everest is ……the……… highest mount in the wall. 
2, I would like to buy ………some……… new clothes but I haven’t ………the……… money. 
3, Are there ………some……… letters for me today? 
Yes, there is only one from New York. 
4, I have got ………a……… little money left, let’s have dinner in ……the………… restaurant. 
5, My mother goes to ………the……… church in …………the…… morning and ………the……… afternoon goes to visit ………the……… friends. 
6, It takes me half ………a……… hour to get to work by ………ko dien……… bus. 
7, What does ………the……… post office sell apart from stamps? 
8, I want to buy ………an……… envelope and ………the……… fifty thousand dong phone card. 
9, Viet would like to send his sister in ……the………… USA ……a………… letter. 
10, Go along this road and take ……the……… second turning on ………the……… left. 

Question 1:Fill the suitable number in the following blank?.\(343=\)_____\(3\)Question 2:The positive value of  such that  \(\left|2x-3\right|+7=16\) is _______Question 3:Given a function \(g\left(x\right)=2\sqrt{x-7}\) . Find the value of \(g\left(11\right)\)?Answer: The value of \(g\left(11\right)\) is ._________Question 4:Find the value of  such that \(0,008=\left(0,2\right)^x\).Answer: . \(x=\)_________Question 5:Given a function\(g\left(x\right)=\frac{2}{3-x}\) . Find the...
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Question 1:
Fill the suitable number in the following blank?
.\(343=\)_____\(3\)

Question 2:
The positive value of  such that  \(\left|2x-3\right|+7=16\) is _______

Question 3:
Given a function \(g\left(x\right)=2\sqrt{x-7}\) . Find the value of \(g\left(11\right)\)?
Answer: The value of \(g\left(11\right)\) is ._________

Question 4:
Find the value of  such that \(0,008=\left(0,2\right)^x\).
Answer: . \(x=\)_________

Question 5:
Given a function\(g\left(x\right)=\frac{2}{3-x}\) . Find the value of .\(g\left(1\right)+g\left(2\right)\)
Answer: The value of \(g\left(1\right)+g\left(2\right)\) is ._______

Question 6:
Suppose that \(\frac{7y-x}{2x+y}=\frac{1}{3}\) then the ratio of  \(x\) to  \(y\)  is .________

Question 7:
If \(x\) is directly proportional to \(y\) with the scaling factor is 8, \(z\)  is directly proportional to \(x\) with the scaling factor is 4.
Then \(z\)  is directly proportional to \(y\) with the scaling factor is______ .

Question 8:
The maximum value of \(A=\frac{6}{2.\left(x-3\right)^2+3}\) is .______

Question 10:
Suppose that\(\frac{7-3x}{5}=\frac{y+4}{3}=\frac{6x-y}{5}\) . Find the ratio of \(y\) to \(x\)
Answer: The ratio of \(y\) to \(x\) is .______________-
(write your answer by decimal in simplest form)

3
6 tháng 1 2016

nói thế nói làm gì bạn ơi

6 tháng 1 2016

you may also be investigated google it.

10 tháng 7 2016

ai làm hộ mình ,mình cho

10 tháng 7 2016

Đây là online math mà coi chừng bị trừ điểm hỏi đáp hoặc nặng hơn là bị khóa nick đó

Ai thấy mk nói đúng thì k mk nha

Complete the second sentence so that it has a similar meaning to the first one.1. We didn't have enough money to buy the skis.The skis were too .......2. This soup has a really delicious taste.This soup tastes .....3. He only has a few words of Portuguese.He can harly .....4. It would be a nice idea to send him a card.I think you should .....5. Michaela was too short to reach the top shelf.Michaela wasn't .....6. She's  a very good tennis player.She plays tennis .....7. I want to invite...
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Complete the second sentence so that it has a similar meaning to the first one.

1. We didn't have enough money to buy the skis.

The skis were too .......

2. This soup has a really delicious taste.

This soup tastes .....

3. He only has a few words of Portuguese.

He can harly .....

4. It would be a nice idea to send him a card.

I think you should .....

5. Michaela was too short to reach the top shelf.

Michaela wasn't .....

6. She's  a very good tennis player.

She plays tennis .....

7. I want to invite you to my party.

Would you like ..... ?

8. I loved the film - I was fascinated by it.

What a great film ! It was .....

9. Didn't your aunt let you go out ?

Did your aunt make you ..... ?

10. We've seldom seen him here.

We haven't  seen ..... 

11. I don't like Tim because he's so sefish.

If Tim weren't .....

12. The exam was more difficult than I expected.

The exam wasn't .....

13. Winning the competition would mean I'd become famous.

If I .....

14. The police arrested the company director last week.

The company director .....

15. Perhaps nobody else wants the job, so I might apply for it.

If nobody else .....

​giúp mình nhé hihi

4
25 tháng 9 2016

1. expensive

2.are delicious

3. has words of portuguese

4.send to he a card

5.reach the top shelf

6.very good/well

7.to go to my party

8.fascinated me

9.not go out

10.him here

11.selfish, I will like him

12.easy when I expected

13. win, I will be/become famous

14 was arrested by the police last week

15. want the job,I will apply for it

25 tháng 9 2016

Nhiều vậy, ít thôi.

17 tháng 9 2019

Dat thế cái máy tính để làm gì hả bác????

17 tháng 9 2019

a) \(-6.\left(-\frac{2}{3}\right).0,25\)

\(=-6.\left(-\frac{2}{3}\right).\frac{1}{4}\)

\(=4.\frac{1}{4}\)

\(=1.\)

b) \(-\frac{15}{4}.\left(-\frac{7}{15}\right).\left(-2\frac{2}{5}\right)\)

\(=-\frac{15}{4}.\left(-\frac{7}{15}\right).\left(-\frac{12}{5}\right)\)

\(=\frac{7}{4}.\left(-\frac{12}{5}\right)\)

\(=-\frac{21}{5}.\)

c) \(\left(-0,4\right)^2-\left(-0,4\right)^3.\left(-3\right)\)

\(=0,16-\left(-0,064\right).\left(-3\right)\)

\(=0,16-0,192\)

\(=-0,032.\)

Chúc bạn học tốt!

6 tháng 9 2015

The length is: 3/4 + 1/12 = 5/6km

Area of land is: 3/4 . 5/6 = 5/8km2

18 tháng 7 2016

sai rồi bạn ơi shorter là ngắn hơn mà đáp án là 0.5 km^2

14 tháng 9 2017

a) A min \(_{\Leftrightarrow}\) \(\dfrac{1}{x-3}\) đạt GTNN \(\Leftrightarrow\) x-3 lớn nhất mà x \(\in Z\) nên x bất kì sao cho càng lớn là đc (vô lý) xem lại đề

14 tháng 9 2017

Ta có\(B=\dfrac{7-x}{x-5}=\dfrac{2+\left(5-x\right)}{x-5}=\dfrac{2}{x-5}+\dfrac{5-x}{x-5}=\dfrac{2}{x-5}-1\)

Để B min thì \(\dfrac{2}{x-5}\) nhỏ nhất

Lại giống câu a

3 tháng 10 2019

1 :\(\frac{7}{20}\)

2 \(\frac{1}{4}\)

3 \(\frac{23}{2}\)

4 2187

5 64

6 x=16

7 x=\(\frac{-1}{243}\)

8 mϵ∅

cho mình hỏi cài này là j vậy

3 tháng 10 2019

Đề 2

1) \(\frac{7}{20}.\)

2) \(\frac{1}{4}.\)

3) \(\frac{23}{2}.\)

4) \(2187.\)

5) \(64.\)

6) \(x=16.\)

7) \(x=\left(-\frac{1}{3}\right)^5\)

8) \(m\in\varnothing.\)

Chúc bạn học tốt!

22 tháng 7 2017

bn lấy máy tính mà tính ý

22 tháng 7 2017

Bài1:

Ta có:

a)\(\sqrt{\dfrac{3^2}{5^2}}=\sqrt{\dfrac{9}{25}}=\dfrac{3}{5}\)

b)\(\dfrac{\sqrt{3^2}+\sqrt{42^2}}{\sqrt{5^2}+\sqrt{70^2}}=\dfrac{\sqrt{9}+\sqrt{1764}}{\sqrt{25}+\sqrt{4900}}=\dfrac{3+42}{5+70}=\dfrac{45}{75}=\dfrac{3}{5}\)

c)\(\dfrac{\sqrt{3^2}-\sqrt{8^2}}{\sqrt{5^2}-\sqrt{8^2}}=\dfrac{\sqrt{9}-\sqrt{64}}{\sqrt{25}-\sqrt{64}}=\dfrac{3-8}{5-8}=\dfrac{-5}{-3}=\dfrac{5}{3}\)

Từ đó, suy ra: \(\dfrac{3}{5}=\sqrt{\dfrac{3^2}{5^2}}=\dfrac{\sqrt{3^2}+\sqrt{42^2}}{\sqrt{5^2}+\sqrt{70^2}}\)

Bài 2:

Không có đề bài à bạn?

Bài 3:

a)\(\sqrt{x}-1=4\)

\(\Rightarrow\sqrt{x}=5\)

\(\Rightarrow x=\sqrt{25}\)

\(\Rightarrow x=5\)

b)Vd:\(\sqrt{x^4}=\sqrt{x.x.x.x}=x^2\Rightarrow\sqrt{x^4}=x^2\)

Từ Vd suy ra:\(\sqrt{\left(x-1\right)^4}=16\)

\(\Rightarrow\left(x-1\right)^2=16\)

\(\Rightarrow\left(x-1\right)^2=4^2\)

\(\Rightarrow x-1=4\)

\(\Rightarrow x=5\)