lineární a kvadratické rce a nerce

lineární a kvadratické rce a nerce

7th Grade

10 Qs

quiz-placeholder

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lineární a kvadratické rce a nerce

lineární a kvadratické rce a nerce

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Medium

Created by

Martina Mlynkova

Used 4+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Řešením rovnice

 x215x+54=0x^2-15x+54=0  jsou čísla

 x1=6, x2=9x_1=6,\ x_2=9  

 x1=9, x2=6x_1=-9,\ x_2=-6  

 x1=3, x2=18x_1=3,\ x_2=-18  

 x1=18, x2=3x_1=18,\ x_2=-3  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Řešením rovnice

 x23x28=0x^2-3x-28=0  jsou čísla

 x1=4, x2=7x_1=-4,\ x_2=7  

 x1=7, x2=4x_1=-7,\ x_2=4  

 x1=2, x2=14x_1=2,\ x_2=-14  

 x1=2, x2=14x_1=-2,\ x_2=14  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Řešením nerovnice

 x22x24<0x^2-2x-24<0  je

 (4,6)\left(-4,6\right)  

 (, 4)(6,)\left(-\infty,\ -4\right)\cup\left(6,\infty\right)  

 (6,4)\left(-6,4\right)  

 (, 6)(4,)\left(-\infty,\ -6\right)\cup\left(4,\infty\right)  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Řešením nerovnice

 x213x+300x^2-13x+30\ge0  je

 <3,10><3,10>  

 (, 3><10,)\left(-\infty,\ 3>\cup<10,\infty\right)  

 <10,3><-10,-3>  

 (, 10><3,)\left(-\infty,\ -10>\cup<3,\infty\right)  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Řešením nerovnice

 49x2>049-x^2>0  je

 (7,7)\left(-7,7\right)  

 (, 7)(7,)\left(-\infty,\ -7\right)\cup\left(7,\infty\right)  

 (,7)\left(-\infty,7\right)  

 (7,+)\left(7,+\infty\right)  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Řešením nerovnice

 x2+5x<0x^2+5x<0  je

 (5,0)\left(-5,0\right)  

 (, 5)(0,)\left(-\infty,\ -5\right)\cup\left(0,\infty\right)  

 (,5)\left(-\infty,-5\right)  

 (5,+)\left(-5,+\infty\right)  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Řešením nerovnice

 x+3x6<0\frac{x+3}{x-6}<0  je

 (3,6)\left(-3,6\right)  

 (, 3)(6,)\left(-\infty,\ -3\right)\cup\left(6,\infty\right)  

 (,3)\left(-\infty,-3\right)  

 RR  

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