Matematika test 7-sinf (ixtisos) 1-variant

9.Tenglamalarsistemasiniyeching:



10.Ikkisonningo’rtaarifmetigi 22,5gateng, аyirmasiningqismi ga teng. Katta sonni toping.

А) 20; B) 25; c) 23; d) 22.

11. tenglamalarsistemasiningyechimibo’lsin. ni toping.

А) 17; .

12.tengsizlikniyechibshutengsizlikyechimibo’lganeng kata butunsonniko’rsating.

А) 0; c)d).

13.ningqandayqiymatlaridavakasrlaryig’indisi2dankatta.

14. To’g’ri chiziq (2;3) va (4;7) nuqtalardan o’tsa, quyidagi nuqtalarning qaysi biri bu bu to’g’ri chiziqda yotadi?

А) (0;2) B) (1;2) C) (2;4) D) (3;5)

15. Agar kvadratning diagonali 2 sm bo’lsa, unga ichki chizilgan doiraning yuzasi necha sm² bo’ladi?

A) B) C) π D) 2π

16. Balandligi 52 m bo’lgan minora ma’lum bir joydagi nuqtadan 60° li burchak ostida ko’rinmoqda. Bu nuqtadan minoraning asosigacha bo’lgan masofa taqriban necha m bo’lishi mumkin?

А) 60 m С) 52 m С) 30 m D) 90 m

17. ABC uchburchakda AD = DC bo’lsa, ABD va CBD uchburchaklarning yuzlari S₁ va S₂ ni taqqoslang.

A) S₁ > S₂ С) S₁ < S₂ С) S₁ = S₂ D) aniqlab bo‘lmaydi

18.To’g’rito’rtburchakningperimetri28 sm, uningyuzi 40m²gateng.To’g’rito’rtburchakningtomonlarini toping.

А) 5 smva 8 sm; B) 4 smva 8 sm; c) 4 smva 10 sm; d) 2 smva 12 sm.

19.Rombning birburchagi 150^о, balandligi esa 3,5 sm. Rombning perimetrini toping.

20.To’g’ri to’rtburchak diagonallari hosil qilgan burchaklardan biri 120^оga, kichik tomoni esa 9 sm gateng. To’g’ri to’rtburchak diagonalini toping.

21.Uchburchakning o’rta chizig’iuningasosidan 3, 6 sm kichik. Uchburchakningo’rtachizig’ini toping.