Matematika test 7-sinf (ixtisos) 1-variant

Ixtisoslashgan maktablar uchun
Testlar 8 sinf
3- variant
1. Soddalashtiring:

A) –5 B) 13 C) D)

2. Agar 4 ≤ x ≤ 10 va 5 ≤ y ≤ 11 bo’lsa, ifodaning eng katta qiymatini toping.

A) 8,5 B) 7 C) 5,5 D) 3,863

3. Agar x – y = 3 va xy = 6 bo’lsa , x³y + xy³ ni hisoblang.

A) 126 B) 128 C) 108 D) 72

4. Ifodani soddalashtiring:
А) –1 С) 2 С) 2 D)
5. Tenglamaningildizlariyig’indisinitoping: .

6. tenglamaningkataildizinikichikildiziganisbatinitoping.

7. funksiyagrafiginingabssisalaro’qibilankesishishnuqtalarikoordinatalarinitoping.

8. funksiyagrafigiabssisalaro’qini nuqtadakesibo’tadi. ningqiymatinitoping.
А) 0,5; B) –0,5; c) 3; d) –3.
9. Найдите произведение корней уравнения .
A) –48 B) –16 C) –9 D) 144
10. Найдите наибольшее целое значение неравенства:
A) 3 С) – 3 С) – 4 D) – 5
11. Сколько целых значений системы неравенств: ?
A) 1 B) 2 C) 3 D) 4

12. Решите систему неравенств:

A) (1,4;,25) B) [2,1;3,5] C)(1,5;3) D) (2,1;3,5]
13. Ifodani soddalashtiring:
A) B) C) D)

х	2	3	4	5
у	7	10	13	16

14. Funksiya jadval orqali berilgan bo’lib, undagi qiymatlar orqali х va у o’zgaruvchilarni bog’lovchi formulani ko’rsating.
A) у = х + 5 С) у = х – 5 С) у = (х – 1) D) у = 3х + 1
15. Agar kvadratning diagonali 2 sm bo’lsa, uning yuzasi necha sm² bo’ladi?
A) 4 B) 2 C) 8 D)
16. Balandligi 60 m bo’lgan minora ma’lum bir joydagi nuqtadan 30° li burchak ostida ko’rinmoqda. Bu nuqtadan minoraning asosigacha bo’lgan masofa taqriban necha m bo’lishi mumkin?
А ) 30 С) 52 С) 104 D) 120

17. ABD uchburchakning yuzi BDC uchburchak yuziga teng. AD va DC kesmalarning uzunligini taqqoslang.

A) AD > DC С) AD < DC С) AD =DC D) aniqlab bo‘lmaydi
18. ABCD trapetsiyaning A va B o’tkir burchaklari yig’indisi 150° ga teng. C va D burchaklarning bissektrisalari E nuqtada kesishsa CED burchakning kattaligini toping.

A) 75° B) 55° C) 115° D) 105°