Matematika 7-sinf Ifodaning qiymatini toping, agar Х =


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7- sinf matematika


Matematika 7-sinf

  1. Ifodaning qiymatini toping , agar х =



  1. kasrning qiymatini toping, agar m =



  1. 0,83у + 0,56у – 0,92у – 0,83у Ifodani soddalashtiring va uning qiymatini toping

agar у = - 4,5 bo’lsa.
A. 16,2 B.162 V. 1,62 G. 0,162.

  1. Qovuslarni oching va soddalashtiring



  1. Tenglamani yeching -5,4 – (х – 7,2) = 1,9.

A. –0,1 B. 0,1 V. 1 G. -1

  1. Amallarni bajaring :

A. 25 B. 5 V. 125 G. 1.
7. Birhadni standart ko’rinishga keltiring. (0,6у2х)(-1,3х2у).
A. –7,8х3у3 B.7,8х3у3 V.6,8х3у3 G. –6,8х3у3.
8. Ko’phadni standart ko’rinishga keltiring
2ab + 0,3a2 – 4ab + 0,7a2 + 3ab.
A. a2 + ab B. 0,1a2 + ab V. a2 – ab D. 0,1a2 - ab.
9. Ko’phadlar bilan amallarni bajaring (4a – 5a2b + 6b2) – (7b2 + 4a2 b - a).
A. –9а2b – b2 + 5a B. –9а2b – b2 + 5a V. –9а2b – b2 + 5a G. –9а2b – b2 + 5a.
10. Qovuslarni oching va amallarni bajaring: 2х(х + 4) – х(х - 5).
A. х2 + 13х B. 3х2 – 13х V. х2 – 13х G. 3х2 + 13х.

  1. Bo’lishlarni bajaring: (3х2у3 – 2х3у2 + 4х3у3) : (х2у2).

A. 3у – 2х + 4ху B. 3у – 2х - 4ху V. -3у – 2х + 4ху G. 3у + 2х + 4ху.

  1. Gruppalsh usuli bilan ko’paytuvchilarga ajratish:

ах – ау + 5х – 5у.
A. (х + у)(а + 5) B. (х - у)(а + 5) V. (х - у)(а - 5) G. (х + у)(а - 5).

  1. Ko’paytuvchilarga ajratish: -5а2 – 10аb – 5b2.

A. 5(а - b)2 B. (а – 5b)2 V. –5(a - b)2 G.(a + 5b)2.

  1. Ko’paytuvchilarga ajratish: 16х4 – 81.

A. (4х2 + 3)(4х2 - 3) B. (2х2 + 3)(2х2 - 3) V. (4х +9)(4х - 9);
G. (4х2 + 9)(4х2 -9).

  1. Tenglamani yeching 5(х + 1,2) = 34х + 0,2.

A. х = -0,2 B. х = 0,2 V. х = 0,3 G. х = - 0,3.
16. Kasrni qisqartiring

17 Amallarni bajaring :

18. Amallarni bajaring :
A. 0 B. 2 V. 1 G. 4.

  1. Qo’shni burchaklardan biri ikkinchisidan 300 ga katta. Bu burchaklarni toping..

A. 750; 1050 B. 650; 1150 V. 850; 950 G. 550; 1250.
20. Ikki to’g’ri chiziqning kesishidan hosil bo’lgan burchak 450 ga teng.Hosil bo’lgan burchaklarni toping.
A. 550; 1250; 1250 B. 450; 1350; 1350 V. 650; 1150; 1150 G. 750; 1050; 1050.
21 Teng yonli uchburchakning perimetri 3,5 м , asosi 1,3 м.Yon tomonlarini toping.
A. 1,2 B. 1,1 V. 1 G. 11.
22. Uchburchakning burchaklarining nisbati 7:5:3 ga teng. Uchburchakning burchaklarini toping.
A. 840; 500; 460 B. 940; 500; 360 V. 840; 600; 360 G. 840; 640; 320.

  1. АВС teng yonli uchburchakda (АВ = ВС) tashqi burchak ВСК 1500 ga teng. АВС burchakni toping..

A. 1300 B. 1100 V. 1000 G. 1200.

  1. Ikki to’g’ri chiziqni uchinchi to’g’ri chiziq bilan kesganda hosil bo’lgan ichki bir tomonli burchaklar nisbati 2:3 ga teng. Bu burchaklarni toping.

A. 720 и 1080 B. 620 и 1180 V. 820 и 980 D. 920 и 880.

  1. АВС va DЕF uchburchaklar teng. АВС uchburchakning burchaklari А = 350; В = 500; С = 950.Uchburchakning DЕF burchagini toping..

A. D= 900; Е = 550; F = 350 B. D = 350; Е = 500; F = 950
V. D= 500; Е = 350; F = 950 D. D= 950; Е = 350; F = 500
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