X sinf, Matematika
II-tur
II-variant
1) 279 ni 16 ga bo’lganda qoldiq 7 bo’ladi. Bo’linma nechaga teng ?
A) 12 B) 13 C) 11 D) 17
2) ga teskari sonni toping.
A) -0,75 B) 1,5 C) D)
3) 1 soat 160 minut 5 sekund necha sekunddan iborat.
A)12205 B)106005 C)13205 D) 14205
4) 3,3; x ; va -2,1 sonlarining o’rta arifmetigi 0,6 ga teng. x ni toping.
A) -0,6 B) 0,6 C) 2 D) 0,8
5) tenglamaning ildizlari manfiy bo’ladigan k ning barcha musbat qiymatlari yig’indisini toping.
A) 13 B) 10 C) 8 D) 11
6) tenglamaning
ildizlari bo’lib, tenglikni qanoatlantirsa, a ning qiymatini toping .
A) 9 B) -1 C) 3 D) -3
7) tejngsizlikni yeching.
A) [-7;5) B) ( C) (-
D) (-7;5]
8) 24 ning barcha natural bo’luvchilari yig’indisini
toping.
A) 48 B) 60 C) 124 D) 108
9) y= funksiya grafigining Oy o’qi bilan
kesishish nuqtasi ordinatasini toping.
A) -1 B) -2 C) 1 D) 0
10) Ikkita to’g’ri chiziqning kesishishidan hosil bo’lgan qo’shni burchaklarning ayirmasi 500 ga
teng.Shu burchaklardan kichigini toping.
A) 650 B) 600 C) 700 D) 500
11) = tenglamaning barcha natural yechimlari yig’indisini toping.
A) 1 B) 12 C) 10 D) 15
12) Yuzi 156 sm2 ,balandliklari 4 sm va 12 sm bo’lgan parallelogrammning perimetrini toping.
A) 73 B) 104 C)96 D) 108
13) ni soddalashtiring.
A) sin4α B) 2tg4α C) cos4α D) tg4α
14) y= funksiyaning aniqlanish sohasini toping.
A) (-4;4) B) C) D)
15) 842 sonining o’ng tomoniga qanday raqam yozilsa, hosil bo’lgan son 36 ga qoldiqsiz bo’linadi?
A) 2 B) 4 C) 8 D) 6
16) y = 3x2 +8x-8 funksiyaning grafigi qaysi choraklarda joylashgan?
A) Barcha choraklarda B) II, III, IV C) I, II, III
D) III, IV
17) tengsizliklar sistemasining
butun yechimlari yig’indisini toping.
A) 5 B) 30 C) 21 D) 20
18) log2(4-2x)- > tengsizlikni yeching.
A) (-∞;1) B) (- ∞;0,5) C) (0; 1) D) (-4;-1)
19) funksiyaning eng katta
qiymatini toping.
A) 1,5 B) C) D) 3
20) Muntazam oltiburchakka tashqi chizilgan
aylananing radiusi bo’lsa ,unga ichki
chizilgan aylananing radiusini toping.
A) B) 1,5 C) 1,2 D)
21) M(x,y) nuqtaning koordinatalari yig’indisi 6ga teng. Bu nuqta va koordinat boshi orasidagi eng qisqa masofa qanchaga teng bo’ladi?
A)2 B)3 C)4,5 D)1,5
22) To’g’ri burchakli uchburchakning katetlari 48 va 14 ga teng. Kichik katetning gipotenuzadagi proyeksiyasini toping.
Javob:____________________________________23) Yig’indisi 38 va 62 sonlarining o’rta arifmetigiga teng bo’lishi uchun 62 ning 60% olinsa, 38 ning necha foizini olish kerak?
Javob:____________________________________24) Uchburchakning burchaklari 450 va 600 ga,
unga tashqi chizilgan aylananing radiusi R ga
teng. Uchburchakning yuzini toping
Javob:____________________________________25) sin 5x tenglamaning ildizlarini ko’rsating.
Javob:____________________________________
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