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11 tháng 4 2025

Để làm được câu khó thì con cần có nền tảng vững chắc kiến thức cơ bản, luyện tập thường xuyên, các bài, dạng bài cho đến khi thuần thục. Sau đó đưa các dạng bài nâng cao về dạng bài cơ bản để làm.

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...
Đọc tiếp

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.

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...
Đọc tiếp

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.

26 tháng 10 2019

1. The hotel in New York was better than the hotel in California.

\(\rightarrow\)The hotel in the California wasn't as good as the hotel in New Year.

2. French is easier than German.

\(\rightarrow\)German isn't as easy as French

3. Rick is frienlier than Glenn.

\(\rightarrow\)Glenn isn't as friendly as Rick

4. Indonesia is hotter than VietNam.

\(\rightarrow\)Viet Nam isn't as hot as Indonesia

5. Football is more exciting than voleyball.

\(\rightarrow\)Volleyball isn't as exciting as football.

              ~ Hk tốt ~

2 tháng 2 2016

a) Ta có :

\(\sqrt{5X-1}\ge0\) => \(\sqrt{5X-1}+\left(1,1\right)^2\ge\left(1,1\right)^2\) Vậy GTNN là 1,21

b) Ta có 

\(\sqrt{11-3X}\ge0\) =>\(-\sqrt{11-3X}\le0\) =>\(1,21-\sqrt{11-3X}\le1,21\) GTLN là 1,21

2 tháng 2 2016

kết quả câu a) ko phải là 1 ; kết quả câu b) ko phải là 21

25 tháng 12 2016

Đề ngu

20 tháng 7 2022

a: \(=-3\left(x^2+3x+\dfrac{25}{3}\right)\)

\(=-3\left(x^2+3x+\dfrac{9}{4}+\dfrac{73}{12}\right)\)

\(=-3\left(x+\dfrac{3}{2}\right)^2-\dfrac{73}{4}< =-\dfrac{73}{4}\)

Dấu '=' xảy ra khi x=-3/2

b: \(=-\left(x^2-x+\dfrac{1}{4}-\dfrac{1}{4}\right)=-\left(x-\dfrac{1}{2}\right)^2+\dfrac{1}{4}< =\dfrac{1}{4}\)

Dấu '=' xảy ra khi x=1/2

c: \(=-\left(x^2-7x-12\right)\)

\(=-\left(x^2-7x+\dfrac{49}{4}-\dfrac{97}{4}\right)\)

\(=-\left(x-\dfrac{7}{2}\right)^2+\dfrac{97}{4}< =\dfrac{97}{4}\)

Dấu '=' xảy ra khi x=7/2

23 tháng 6 2018

I call the number of students didn't take part in Mathemas Competition in class A & B are a & b respectively

(with condition: a & b \(\in\)N*)

,From the theme, we have: \(\frac{1}{3}b+a=\frac{1}{5}a+b\)(Because rhe number of students in 2 class is the same)

\(\Leftrightarrow\frac{b}{3}-b+a-\frac{a}{5}=0\Leftrightarrow\left(-\frac{2b}{3}\right)+\frac{4a}{5}=0\)

\(\Leftrightarrow\frac{4a}{5}-\frac{2b}{3}=0\Leftrightarrow\frac{12a-10b}{15}=0\Leftrightarrow12a=10b\)

\(\Rightarrow\frac{a}{b}=\frac{10}{12}=\frac{5}{6}\) 

So the ratio of the number of student didn't take part of Class A & B is \(\frac{5}{6}.\)