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

Algebra VIII-sinf.IV chorak test. D-variant

1. 
   Sonning aniq qiymati 1,453, taqribiy qiymati 1,46 bo’lsa,yaqinlashish xatoligini toping: #1 0,003 #2 0,007 #3 1,005 #4 - 0,007 #5 0,002
   
2. 
   Sonning aniq qiymati , taqribiy qiymati bo’lsa,yaqinlashish absolyut xatoligini toping: #1
   
3. 
   Qo’sh tengsizlik ko’rinishida yozing: a= -1,8  0,3
   

#1 -2a  1,5 #3 -2,2  a  1,4 #4 -2,3  a  1,3 #5 -2,4

4. 
   Qo’sh tengsizlik ko’rinishida yozing: a=2,71  0,01
   

#1 2,7 a 2,72 #2 2,62,62 #3 2,9 #4 2,2  a  2,22

#5 1,99 a

5. 
   Qo’sh tengsizlik ko’rinishida yozing: a=2  0,01
   

#1 2,7 a 2,72 #2 2,62,62 #3 2,9 #4 2,2  a  2,22

#5 1,99 a

6. ni 0,01 gacha aniqlikda o’nli kasr ko’rinishida yozing:

#1 0,13 #2 0,32 #3 0,42 #4 0,47 #5 0,53

7. ni 0,001 gacha aniqlikda o’nli kasr ko’rinishida yozing:

#1 0,357 #2 0,214 #3 0,643 #4 0,308 #5 0,185

8. 
   Xonaning uzunligi (4  0,02) m ga teng.O’lchashning nisbiy xatoligini aniqlang: #1 4% #2 5% #3 2% #4 8% #5 1,25%
   
9. 
   Ikki qishloq orasidagi masofa (100  1)km ga teng. O’lchashning nisbiy xatoligini aniqlang: #1 1% #2 2% #3 3% #4 4% #5 5%
   
10. 
    Ikki qishloq orasidagi masofa (100  5)km ga teng. O’lchashning nisbiy xatoligini aniqlang: #1 1% #2 2% #3 3% #4 4% #5 5%
    
11. 
    Sonni yuzdan birgacha yaxlitlang.Yaxlitlashning nisbiy xatoligini toping: 2,163
    

#1 5,76; 0,061% #2 4,46; 0,078% #3 3,71; 0,094% #4 2,16; 0,139% #5 2,29; 0,179%

8. 
   Sonni standart shaklida yozing: 0,00000078
   

#1 7,8*10⁷ #2 7,8*10^-7 #3 78*10^-7 #4 0,78*10^-5 #5 0,078*10⁵

8. 
   Tenglamani yeching: x⁴-4x²-5=0
   

#1 x_1,2= - #2 x_1,2=5 #3 x_1,2= #4 #5 x_1,2=

8. 
   Ikki sonning ayirmasi 3 ga , ularning ko’paytmasi 28 ga teng.Shu sonlardan kichigini toping. #1 2 #2 4 #3 7 #4 11 #5 65
   
9. 
   To’g’ri to’rtburchakning perimetri 30 m ga, yuzi esa 56 m² ga teng .Uning bo’yi endian qancha uzun. #1 5 #2 6 #3 3 #4 8 #5 1
   
10. 
    To’g’ri to’rtburchakning perimetri 22 m ga, yuzi esa 24 m² ga teng .Uning bo’yi endian qancha uzun. #1 5 #2 6 #3 3 #4 8 #5 1
    
11. 
    Tenglamani yeching: x²=8x
    

#1 x= #2 x= #3 x=0, x= -5 #4 x=0, x=8 #5 x=0, x= 12

8. 
   Tenglamani yeching: 3x(x+2)=2x(x-2)
   

^{#1 y= #2 x=0, x= 9 #3 x=0 , x= -10 #4 y=0, y=9 #5 x=0, x= -1,6}

8. 
   Tenglamani yeching: x²+3,5x-2=0
   

8. 
   Tenglamani yeching: x²-x-2=0
   

8. 
   Tenglamani yeching: (x+5)(x-3)=2x-7
   

8. 
   Tenglamani yeching:
   
9. 
   Tenglamani yeching: x²-12x+11=0
   

24. Tenglamani yeching: (x-3)²+(x+4)²-(x-5)²=17x+24

25. Sport musobaqalarida VII-sinf o’quvchisi 60 m masofani 9 s da, X-sinf o’quvchisi esa 100 m masofani 14,8 s da bosib o’tdi. O’quvchilar o’zgarmastezlik bilan chopganlar deb hisoblab, kim tezroq yugurganini aniqlang.