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

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

1. 
   Sonning aniq qiymati 1,405, taqribiy qiymati 1,4 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  0,2
   

#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= -1,8  0,6
   

#1 -2a  1,5 #3 -2,2  a  1,4

#4 -2,3  a  1,3

#5 -2,4

5. 
   Qo’sh tengsizlik ko’rinishida yozing: a=2,21  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 (5  0,02) m ga teng.O’lchashning nisbiy xatoligini aniqlang: #1 4% #2 5% #3 2% #4 8% #5 1,25%
   
9. 
   Xonaning uzunligi (4  0,05) m ga teng.O’lchashning nisbiy xatoligini aniqlang: #1 4% #2 5% #3 2% #4 8% #5 1,25%
   
10. 
    Ikki qishloq orasidagi masofa (100  4)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: 3,7135
    

#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: 234,087
   

#1 2,34087*10² #2 23,4087*10 #3 2,4*10² #4 23,5*10² #5 2,34*10^-2

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

^{#1 x}1,2^{= #2 x}1,2^{= #3 x}1^{=1, x}2^{=4 #4 x}1,2^{= #5}

8. 
   Ikki sonning ayirmasi 3 ga , ularning ko’paytmasi 28 ga teng.Shu sonlarni toping. #1 7 va 4 #2 8 va 5 #3 7 #4 11 #5 65
   
9. 
   Ikki sonning ayirmasi 3 ga , ularning ko’paytmasi 28 ga teng.Shu sonlar kvadratlari ko’paytmasini toping. #1 49 #2 4 #3 7 #4 11 #5 65
   
10. 
    To’g’ri to’rtburchakning perimetri 32 m ga, yuzi esa 55 m² ga teng .Uning bo’yi endian qancha uzun. #1 5 #2 6 #3 3 #4 8 #5 1
    
11. 
    Tenglamani yeching: x²+5x=0
    

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

8. 
   Tenglamani yeching: 11y-15=(y+5)(y-3)
   

^{#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+6x+5=0
   

8. 
   Tenglamani yeching: 4x²-x-14=0
   

8. 
   Tenglamani yeching: 2x²-9x=35
   

8. 
   Tenglamani yeching:
   
9. 
   Tenglamani yeching: x²+3x+70=0
   

8. 
   Tenglamani yeching: x(x-15)=3(108-5x)
   

8. 
   Oddiy kasrning surati maxrajidan 11 ta kata . Agar shu kasrning suratiga 5, maxrajiga 12 qo’shilsa, berilgan kasrdan uch marta kichik kasr hosil bo’ladi.Shu kasrni toping.