X musbat butun son bo`lib, 489 sonini X ga bo`lganda bo`linma 4x bo`lsa, qoldiq topilsin

Matematika . (1-guruh)

1. 
   . x musbat butun son bo`lib, 489 sonini x ga bo`lganda bo`linma 4x bo`lsa, qoldiq topilsin.
   

A)5 B) 6 C) 10 D) 12 E) 15
Besh xonali 7 soni 6 ga bo`linadi. 𝑎∙b ko`paytma ko`pi bilan necha bo`lishi mumkin ?

1. 
   16 B) 81 C) 64 D) 42 E) 36
   

.ato`g`ri ?
A)c<-2 B) -1

2. 
   . x∙y=2,(2) va 3< <6 bo`lsa, y uchun shu shartlarni qanoatlantiruvchi eng katta butun qiymatni toping.
   
3. 
   A) 11 B) 12 C) 13 D) 14 E) 15
   
4. 
   . x²+x+1=m² va x-1=n² bo`lsa,
   
5. 
   
   
6. 
   A)mn+1 B) mn-1 C) mn D) mn-3 E) mn+3
   
7. 
   Bir mashina borishi kerak bo`lgan yo`lning qismini 12 soatda bosdi.Keyin tezligini 3 marta orttirdi.Qolgan yo`lni necha soatda bosadi ?
   
8. 
   A) 6 B) 12 C) 18 D) 24 E) 28
   
9. 
   
10. 
    18.Bir idishning 20 % i bo`sh. Idishdagi suvning necha foizi qadar suv qo`shilsa, idish to`ladi?
    
11. 
    A) 15 B) 20 C) 25 D) 30 E) 40
    

. f(2x-1)= 4x-5 bo`lsa, ?
A)

22. f(x)=mx bo`lsa f( =?

A)

12. 
    . tengsizlikni yeching.
    
13. 
    A) x<0 B) x>0 C) x>2 D) R E)
    
14. 
    . lg𝑎=0,7 bo`lsa, 𝑎⁸⁰ necha xonali son ?
    
15. 
    A) 55 B) 56 C) 57 D) 80 E) 81
    
16. 
    
17. 
    . =x² bo`lsa, f(81)=?
    
18. 
    A) 2 B) 4 C) 6 D) 8 E) 9
    
19. 
    . а bo`lsa, tengsizlik qaysi tengsizlikka ekvivalent (teng kuchli)?
    
20. 
    А)х
    
21. 
    
22. 
    . =?
    
23. 
    А)1 В)2 С) Д)
    
24. 
    
25. 
    . tengsizlikning butun yechimlari yig`indisini toping.
    
26. 
    A)15 B) 16 C) 18 D) 21 E) 27
    
27. 
    . formula bilan berilgan
    
28. 
    ketma- ketlikning eng katta hadini toping.
    
29. 
    А)20 В)30 С)50 Д)80 Е)60
    
30. 
    .х²+2у²=3ху bo`lsa, x/y ning eng katta qiymatini toping.
    
31. 
    А)1 В)2 С)3 Д)4 Е)5
    
32. 
    . Agar hadlari musbat bo`lgan cheksiz kamayuvchi geometrik progressiyaning hadlari yig`indisi 405 ga,dastlabki 4ta hadi yig`indisi 325 ga teng bo`lsa,
    
33. 
    b₅=?
    
34. 
    А)2,(6) В)5 С)26,(6) Д)48 Е)56
    
35. 
    75∙28∙90∙100∙36∙125 ko`paytma nechta nol raqami bilan tugaydi?
    
36. 
    9 B) 7 C) 5 D) 8
    
37. 
    Tenglamaning ildizlari yig`indisini toping.
    
38. 
    A) 2 B) 5 C) 7 D) 10
    

.Quyidagi munosabatlardan qaysilari to`g`ri?
I.y= funksiyaning aniqlanish sohasi barcha haqiqiy sonlar to`plamidan iborat
II. y= funksiya doimo o`suvchi
III. y= funksiya doimo (0;1) nuqtadan o`tadi
IV. y= funksiyaning grafigi barcha choraklardan o`tadi.

1. 
   II,IV B) II,III,IV C) I,III D) I,II,III
   
2. 
   𝑎= va b=
   

bo`lsa, nisbatni toping.

3. 
   
   
4. 
   . Quyidagilardan nechtasi to`g`ri ?
   
5. 
   I. log 3 II. III. IV.
   
6. 
   A) 0 B) 1 C) 2 D) 3