|
№65. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-1;
№66. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Kvadraqt tenglamani yeching: x2+7x+6=0
|
x1=-6, x2=-1
|
x1=-7, x2=-6
|
|
x1=1, x2=-1
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№67. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Romb diagonallarining tomonlari bilan hosil qilgan burchaklari kattaliklarining nisbati 2:7 ga teng. Rombning kichik burchagini toping.
|
400
|
500
|
600
|
700
|
№68. Fan bobi-; Fan bo‘limi-1; Qiyinlik darajasi-2;
Muntazam to‘rtburchakli piramidaning balandligi 24 ga, asosining tomoni 14 ga teng. Uning apofemasini toping.
|
25
|
32
|
28
|
27
|
№69. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Yig‘indini hisoblang:  +  +  +  + …. + 
|
|
|
|
|
№70. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
x2-6x+y2-8y=0 aylana koordinatasini toping .
|
(3;4)
|
(-3;4)
|
(4;-3)
|
(-3;-4)
|
№71. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Prizma jami qirralari soni 36ga teng bo‘lsa, uning nechta yog‘i bor?
|
14
|
16
|
9
|
20
|
№72. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Yon qirrasi 32, balandligi 6, uchburchakli piramida yon sirtini yuzini toping.
|
27
|
12
|
23
|
32
|
№73. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Konus asosi R=3sm h=4sm yasovchi l ni toping.
|
5
|
8
|
15
|
16
|
№74. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Uchburchak tomonlari a=13sm, b=14sm, c=15sm.Yuzini toping?
|
84
|
80
|
48
|
100
|
№75. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
A(1;2;3) koordinatalar boshiga nisbatan simmetrik bo‘lgan nuqtani toping.
|
(-1;-2;-3)
|
(-1;2;-3)
|
(1;-2;3)
|
(1;2;-3)
|
№76. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Ikki aylana uzunliklari nisbati 3ga teng bo‘lsa, yuzalar nisbatini toping.
|
9
|
16
|
12
|
8
|
№77. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Juft sonning undan keyin keluvchi juft sonning uchlangani bilan yig‘indisi 134dan katta, ayni shu juft sonning undan oldin keluvchi juft sonning ikkilangani bilan yig‘indisi 104dan kichik. Shu sonni toping.
|
34
|
26
|
65
|
30
|
№78. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Rombning tomonlaridan biri bilan dioganallari hosil qiladigan burchaklari nisbati 2:3 ga teng, rombning burchaklarini toping.
|
720,108
|
360,400
|
1300,500
|
1400,400
|
№79. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Mahsulotning narxi birinchi marta 25 % ga, ikkinchi marta yangi bahosi yana 20 % ga oshirildi.Mahsulotning oxirgi bahosi necha foizga kamaytirilsa, uning narxi dastlabki narxiga teng bo‘ladi?
|
50
|
45
|
40
|
33
|
№80. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Ikki aylana uzunliklari nisbati 3ga teng bo‘lsa, yuzalar nisbatini toping.
|
9
|
16
|
12
|
8
|
№81. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
To‘g‘ri chiziq va tekislik orasidagi burchak qanday burchak bo‘ladi?
|
Vertical
|
O‘tmas
|
O‘tkir
|
To‘g‘ri
|
№82. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Trapetsiyaning o‘rta chizig‘i 7sm, uning asoslaridan biri ikkinchisidan 4sm katta. Asoslarini toping.
|
5;9
|
3;4
|
12;2
|
8;6
|
№83. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Ikkita buyumning birgalikdagi bahosi 43500 so‘m turadi. Agar birinchi buyumning bahosi 10% kamaytirilsa, ikkinchisiniki esa 15% orttirilsa, ular birgalikda 45100 so‘m turadi. Birinchi buyumning dastlabki bahosini toping.
|
19700
|
21830
|
17320
|
19500
|
№84. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Uchburchak ikkita burchagining qiymatlari nisbati 5:9 kabi, uchinchi burchagi shu burchaglarning kichigidan 290 ga kichik. Uchburchagning eng kichik burchagini toping.
|
260
|
500
|
400
|
360
|
№85. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
To‘g‘ri burchakli trapetsiyaning asoslari 12 ba 9 ga, yuzi esa 42 ga teng. Shu trapetsiyaning perimetrini toping
|
30
|
20
|
25
|
42
|
№86. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
(x;y) sonlar juftligi  sistemaning yechimi bo‘lsa, x+y ni toping.
|
5
|
-5
|
4
|
-4
|
№87. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Asoslari 28 sm va 12 sm ga teng bo‘lgan trapetsiyaning diagonallari o‘rtalarini tutashtiruvchi kesmaning uzunligini toping.
|
8 sm
|
10 sm
|
6 m
|
7 sm
|
№88. Fan bobi-2; Fan bo‘limi-1; Qiyinlik darajasi-2;
Har qanday burchakning nechta simmetriya o‘qi bor?
|
1
|
2
|
3
|
4
|
№89. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Har qanday kesma nechta simmetriya o‘qiga ega?
|
1
|
2
|
3
|
4
|
№90. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-2;
Аgаr bo‘linuvchi 3 mаrtа kаmаytirilib bo‘luvchi 3 mаrtа оrtirilsа bo‘linmа qаndаy o‘zgаrаdi?
|
9 marta kamayadi
|
9 marta ortadi
|
o`zgarmaydi
|
9 ta kamayadi
|
№91. Fan bobi-2; Fan bo‘limi-2; Qiyinlik darajasi-3;
Аgаr bo‘linuvchi 3 mаrtа оrtirilib bo‘luvchi 3 mаrtа kаmаytirilsа bo‘linmа qаndаy o‘zgаrаdi?
|
9 marta ortadi
|
9 marta kamayadi
|
9 ta ortadi
|
9 ta kamayadi
|
№92. Fan bobi-2; Fan bo‘limi-3; Qiyinlik darajasi-2;
To‘g‘ri burchakli uchburchaksning katetlari 6 va 8 ga teng. Uning gipotenuzasiga tushirilgan balandligini toping
|
4.8
|
5
|
6
|
4.7
|
№93. Fan bobi-2; Fan bo‘limi-3; Qiyinlik darajasi-2;
Do'stlaringiz bilan baham: | 
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