Algebra vii-sinf. I-chorak test. A-variant

Algebra VII-sinf.I-chorak test.B-variant

1. Litrda ifodalang: 45 mm³ #1 0,45 l#2 0,045 l#3 0,0045 l#4 0,00045 l#5 0,000045 l

2. 600m² ni gektarda ifodalang. #1 0,66 ga#2 0,0006 ga#3 0,06 ga#4 0,006 ga#5 0,6 ga

3. ¹  ¹  ¹  ¹

yig’indini hisoblang: #1 1,32/45 #2 1,31/60#3 1,17/60#4 1,9/15#5 1,34/45

2 3 4 5

4.1 ⁸ * ¹³  ⁵ : ⁸

ifodani hisoblang. #1 1, 3/8#2 1,1/8#3 1,1/4#4 3,3/8#5 2,1/4

13 42 7 21

5. 
   Kubning barcha qirralari uzunliklari yig'indisi 36 smga teng. Kub sirti yuzini toping. #1 27sm² #2 1334sm² #3 36sm² #4 54sm² #5 45sm²
   
6. 
   Algebraik ifoda deb qanday ifodaga aytiladi?
   

#1 Sonlardan tuzilib amal ishoralari bilan birlashtirilgan yozuv.#2 Sonlar va harflardan tuzilib amal ishoralari bilan birlashtirilgan ifoda.#3 Tenglik belgisi bilan birlashtirilgan ifoda.#4 Noma’lum qatnashgan tenglik.#5 Hammasi to’g’ri

5. 
   a=2,4, b=3,6, h=1,6 bo’lsa, s= ifodaning son qiymatini toping. #1 48 #2 3,18 #3 6,36 #4 0,48 #5 4,8
   
6. 
   Teng yonli uchburchakning perimetri P ga, asosining uzunligi a ga teng.Uchburchakning yon tomoni uzunligini topish uchun ifoda tuzing.
   

#1 2a-P #2 2P-a #3 P-a #4 #5 P-2a

5. 
   Ifodani soddalshtiring va uning a=2,4; b=1,5 bo’lgandagi qiymatini toping: 0,5*(2a-3b)-(4b+2,5a) #1 17,4 #2 -17,4 #3 -1,4 #4 -11,85 #5 0,6
   

10. Ifodaning son qiymatini toping: (-1,5)*(2,7:-0,9)-(-7,2):3,6)+2,4*(-2,5) #1 -6 #2 -7,5 #3 7,5 #4 -4,5 #5 4,5

11. 
    Uchburchak bir tomonining uzunligi a ga teng. Ikkinchi tomoni uzunligi bu tomonning 80% ini tashkil qiladi. Uchinchi tomoni esa birinchi va ikkinchi tomonlar yig’indisining yarmiga teng bo’lsa, shu uchburchakning perimetrini toping.
    

#1 1,8a #2 2,7a #3 3a #4 3a+0,8 #5 2a+0,8

11. 
    Tenglamani barcha ildizlarini topish yoki ularning yo’qligini ko’rsatish qanday amal deyiladi? #1 Tenglamani qiymati #2 Tenglamani yechish #3 Tenglamani ildizi #4 Tenglamani o’ng qismi #5 Tenglamani chap qismi
    
12. 
    ^{4:(2x+5)=2:(3x-2) tenglamaning ildizi x}0 ^bo’lsa,4x0^{+11 ifodaning son qiymatini toping.} #1 -18 #2 -20 #3 19 #4 20 #5 21
    
13. 
    Teng yonli uchburchakning perimetri 42 sm ga teng.Yon tomon asosning qismini tashkil qiladi. Shu uchburchakning asosi yon tomonidan necha sm uzun?
    

#1 7,5 sm #2 6,5 sm #3 6 sm #4 7 sm #5 5 sm

15. Tenglamani yeching. 3(x+2)-2(x+3)=7-5(x+1) #1 - #2 #3 -1 #4 2 #5 -

16. 
    Tenglamani yeching.1,5*(2-x)+1=2(2- #1 Cheksiz ko’p yechimga ega #2 #3 2 #4 #5 -2
    
17. 
    Tenglamani yeching. #1 4 #2 8 #3 2 #4 -2 #5 TJY
    

18. Tenglamani yeching.30:10=6:x #1 3 #2 7 #3 6 #4 9 #5 2

19. 
    Tenglamani yeching.2
    
20. 
    Tenglamani yeching. 300-x+
    
21. 
    Tenglamani yeching.2x+x=3
    
22. 
    Ikki sonning yig’indisi 70ga teng.Birinchi son ikkinchi sondan 2,5 marta kichik. Shu sonlarni kichigini toping.
    
23. 
    Teng yonli uchburchakning perimetri 40 sm gat eng. Yon tomoni asosining qismini tashkil etadi. Shu uchburchak asosi uzunligini toping.
    
24. 
    To’g’ri to’rtburchakning qo’shni tomonlari ayirmasi 8 ga, perimetri esa 36 ga teng. Uning kichik
    

tomonini toping.

19. 
    Ketma-ket kelgan ikkita toq sonlar yig’indisini yozing. a) n-1+n+1 b) n+1 +n+3 c) 2n-1+2n+1 d) 2n+3+n+3
    

1. ³ : ⁵

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