9-sinf Matematika II-chorak 2-variant
1..Yuzlari 6m2 va 24m2 bo’lgan ikkita to’rtburchak o’xshash, o’xshashlik koeffitsentini toping.
A) B) C) D)
2.Tenglamalarniu yeching: =3
A)x=5 B) X-5 C) X=4 D)X=-4
3.Ushbu funksiyalardan qaysi biri bir juft funksiyalar bo’ladi?
A)y=x4 va y= 2 B)y=x3 va y= 5 C) y=x2 va y=2x+1 D)y=x6 va
4.Quidagi tengsizliklardan qaysi natog’ri?
A) =3 B) =64 C) x10y20 =2x2y4 D) 12b18 =a2b3
5.Hisoblang: 37:34+(2)3*(2)2-(4-2)-2=
A)-33 B)43 c)-53 D)-43
6.Ratsional ko’rsatgichli daraja shaklida tasvirlang? X1,7*x2,8: 5
A)x B)x-1 C)x-2 D) 2
7.Hisoblang: (3a2)-3
A)9a-6 B)27a-6 C)6a-9 D)27a5
8. Ushbu funksiya lardan kesishish nuqtalarini toping. Y= va y=3x
A) (-2:-6) B)(6:2) C)(-2:-6) va (2:6) D)(2:6)
9.Hisoblang: (3a2)-3
A)9a-6 B)27a-6 C)6a-9 D)27a5
10. Eni 3sm ,bo’yi 4sm bo’lgada to’g’ri to’rtburchakka o’xshash ,o’xshashlik koeffisienti 2ga teng bo’lganda to’rburchak tomonlarini qanday.
A)5 va 6 B)6 va 8 C)6 va 9 D)1 va 2
11.Sonlarni o’sish tartibida joylshtiring: a= ; b= ; c=
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12.A gar F1 o’xshash F2 bo’lsa, k-o’xshashlik koeffitsentini P1,P2-perimetr, S1, S2 yuzlari P1=84, S1=100, S2=25. k va P2 nimaga teng?
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13. ni hisoblang
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14.Bo’yi 150 sm bo’lgan odam soyasining uzunligi 2,4 m bo’lgan paytda balandligi 4 m bo’lgan sim yog’och soyasining uzunligini toping.
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15.Trapetsiyaning o’rtacha chizig’I 9 sm ga, kichik asosi esa 5 sm gat eng. Shu trapetsiyaning katta asosini toping.
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