mn giúp mik với

Because in summer,the sun doesn't set for nearly three months 

Anh làm rồi mà :v

5/ \(10x+3-5x\le14x+12\)
<=>\(10x-5x-14x\le12-3\)
<=>\(-9x\le9\)
<=>\(x\ge-1\)
Vậy bất phương trình có nghiệm là \(x\ge-1\)

6/\(\left(3x-1\right)< 2x+4\)
<=>\(3x-2x< 4+1\)
<=> x<5
Vậy tập nghiệm của bất phương trình là x<5

9/ \(\left(x-1\right)\left(x+2\right)>\left(x-1\right)^2+3\)
<=>\(x^2+2x-x-2>x^2-2x+1+3\)
<=> \(x^2+2x-x-x^2-2x>1+3+2\)
<=>\(-x>6\)
<=> x<-6
Vậy nghiệm của bất pt là X<-6

9 were impressed

12 were having - went 

14 has been passed

15 are made

bạn đăng ít thôi cho mn cùng giúp nhé 

a, \(x^2-2\sqrt{5}x+5=0\Leftrightarrow\left(x-\sqrt{5}\right)^2=0\Leftrightarrow x=\sqrt{5}\)

b, \(x^2-9x+10=0\)

\(\Delta=81-4.10=41>0\)

\(x_1=\dfrac{9-\sqrt{41}}{2};x_2=\dfrac{9+\sqrt{41}}{2}\)

c, \(2x^2-3x+5=0\)

\(\Delta=9-4.5.2=9-40< 0\)

Vậy pt vô nghiệm 

cho nhìu

d: \(\text{Δ}=\left(-6\right)^2-4\cdot1\cdot14=36-56=-20< 0\)

Do đó: Phương trình vô nghiệm

e: =>x+9=16

hay x=7

f: =>(x-3)(x-5)=0

=>x=3 hoặc x=5

j: \(\Leftrightarrow\left(4x-5\right)^2=0\)

=>4x-5=0

hay x=5/4

11. How many eggs do you want to buy?

12. How much cheese does your mom want?

13. How many kilos of rice do you want?

14. How many exercises do Minh must finish?

15. Is there any butter in the jar?

16. How many cities and provinces does Viet Nam have?

17. How many pancakes are you making?

18. How many ice-creams does Ha want? 

19. How many eggs do you have in the basket?

20. How many noodles are there in the cupboard?

What is there near your house?

How much coffee is there in the cup?

How manyboys are there in the class?

How many people has his family got?

How many new books does nam have?

What does nam have to do at home?

When do we have to go to school?

What are they having for dinner?

Who is correcting our exercises?

How long has mr.smith taught us french?

What is there near your house?

How much coffee is there in the cup?

How manyboys are there in the class?

How many people has his family got?

How many new books does nam have?

What does nam have to do at home?

When do we have to go to school?

What are they having for dinner?

Who is correcting our exercises?

How long has mr.smith taught us french?