2G Di

2G Di

8th Grade

15 Qs

quiz-placeholder

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2G Di

2G Di

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Azhar Bakkali

Used 15+ times

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15 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

5 sec • 1 pt

Дискриминант деген ...

бөлуші,ажыратушы

D=b24acD=b^2-4ac

туынды

ax2+bx+c – екі дәрежелі үш мүшенің дискриминанты b2-4ac – болса, x2+px+q үш мүшенің дискриминанты (p/2)2 – q – ға тең.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

2у² – 9у + 10 = 0.

x1=3.5; x2=4x_1=3.5;\ x_2=4

x1=2.5; x2=2x_1=2.5;\ x_2=2

x=0; x_{ }=0\text{; }

x1=5 x2=4x_1=5\ \ x_2=4

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

 D<0D<0  

теңдеудің екі түбірі бар

түбірі жоқ

бір ғана түбірі бар

4.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

D=0

бір ғана түбірі бар

түбірі жоқ

теңдеудің екі түбірі бар

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

 D>0D>0  

Бір ғана түбірі бар

түбірі жоқ

теңдеудің екі түбірі бар

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

парабола төбесінің формуласы...

4acb24a\frac{4ac-b^2}{4a}

a2+b2a^2+b^2

b2a-\frac{b}{2a}

4ac±b24ac\pm b^2

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

у² – 11у – 152 = 0

x1=19 x2=8x_1=19\ x_2=8

x1=19 x2=8x_1=19\ x_2=-8

x1=19 x2=8x_1=-19\ x_2=8

x1=19 x2=8x_1=-19\ x_2=-8

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