2, 3, 5, va 11 ga bo‘lganda, qoldiqda chiqadigan eng kichik butun musbat sonni toping

A) 36 B) 54 C) 48 D) 72

21. Trapetsiya asoslari 17 m va 7 m. Asoslarga parallel va trapetsiya yuzasini teng ikkiga bo‘luvchi kesma uzunligini toping.

A) 13 B) 8,5 C) 15 D) 14

22. Teng yonli trapetsiyaning balandligi _{ } , yuzasi _{ } va o‘tkir burchagi _{ } bo‘lsa, uning o‘rta chizig‘i trapetsiya yuzasini qanday nisbatda bo‘ladi?

A) _{ } B) _{ } C) _{ } D) _{ }
23. Agar va bo’lsa, son nimaga teng.
A) B) C) D)

24. _{ } ifodaning eng kichik qiymati nechaga teng?

A) _{ } B) _{ } С) _{ } D) _{ }

25. ABC uchburchakda BC = a, _{ }BAC — α . Agar AB = 2AC bo‘lsa, AC ni toping.

A) AC=_{ } B) AC=_{ }
C) AC=_{ } D) AC=_{ }

26. Perimetri 15 sm, gipotenuzasi 7 sm bo‘lgan to‘g‘riburchakli uchburchak yuzasini toping.

A) 3,75 B) 4,25 C) 4 D) 6,25

27. Uchburchakning o‘rta chizig‘i uni trapetsiya va uchburchakka bo‘ladi. Ularning yuzalarining nisbatini toping.

A) 4:1 B) 2:1 C) 3:1 D) _{ }

28. Qavariq n-burchakning ichki burchaklari yig‘indisi tashqi burchaklar yig‘indisidan ikki marta katta. n ni toping.

A) 6 B) 8 C) 5 D) 4

29. Tengamani yeching: (x + 2) (x + 4)( x - 6) (x - 8) = 2925

A) x₁ = 6, x₂ = 15 B) x₁ = - 8, x₂ = - 11
C) x₁ = - 7, x₂ = 11 D) x₁ = 10, x₂ = 11

30. _{ } funksiya aniqlanish sohasiga tegishli eng kichik butun sonni toping.

A) -1 B) 0 C) 1 D) 2

31. Agar _{ } va _{ } bo‘lsa, _{ } ni hisoblang.

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32. Agar _{ } bo‘lsa, _{ } ni hisoblang.

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33. Tenglamalar sistemasini yeching: _{ }

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34. _{ } tenglamani yeching.

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35. Tengsizlikni yeching: _{ }.

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36. Agar x²+y²+z²-10x-6y+10z+59=0 bo‘lsa, 5x+4y+6z ifodani qiymatini toping.

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37. tenglamani yeching.

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38. Nuqtadan aylanaga eng katta kesuvchi va urinma o‘tkazilgan. Urinma 20 sm, aylana radiusi 21 sm bo‘lsa, kesuvchi uzunliglini toping.

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39. Radiuslari 1, 2 va 3 bo‘lgan aylanalar tashqi urinishadi. Ularning markazlari o‘zaro tutashtirilgan. Hosil bo‘lgan uchburchak yuzasini toping.

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40. Ikkita to‘rtburchaklar o‘xshash bo‘lib, birining uchta tomoni ikkinchisining uchta tomoniga teng. Ularning teng bo‘lmagan tomonlari 16 va 81 ga teng. To‘rtburchaklarning o‘xshashlik koeffitsientini toping.

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