Линейные и квадратичные неравенства.

Линейные и квадратичные неравенства.

10th - 12th Grade

10 Qs

quiz-placeholder

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Линейные и квадратичные неравенства.

Линейные и квадратичные неравенства.

Assessment

Quiz

Mathematics

10th - 12th Grade

Hard

Created by

Irina Suvorova

Used 13+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Pешить  неравенство  \ \ \ -4x+8\ \ge0  

 x( ; 2)x\in\left(\ -\infty;\ -2\right)  

 x ( 2;    )x\ \in\left(\ -2;\ \ \ \infty\ \right)  

 x( 2;   )x\in\left(\ 2;\ \ \infty\ \right)  

 x (;  2]x\in\ \left(-\infty;\ \ 2\right]  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Решить  неравенство  x2+72x(x3)x^2+7\le2x\left(x-3\right)  

 x(; 1][7; )x\in\left(-\infty;\ -1\right]\cup\left[7;\ \infty\right)  

 x [1; 7]x\in\ \left[-1;\ 7\right]  

 x (;1)(7;)x\in\ \left(-\infty;-1\right)\cup\left(7;\infty\right)  

 x  (; 7]  [1; )x\ \in\ \left(-\infty;\ -7\right]\ \cup\ \left[1;\ \infty\right)  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Решить неравенство  x2+6x+18 >0x^2+6x+18\ >0  

 x=ϕx=\phi  

 x(; )x\in\left(-\infty;\ \infty\right)  

 x(;0)(0;)x\in\left(-\infty;0\right)\cup\left(0;\infty\right)  

 x=0x=0  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Решить  неравенство   5x2x20\ 5x-2x^2\ge0  

 x(0; 2,5]x\in\left(0;\ 2,5\right]  

 x (0;2,5) x\in\ \left(0;2,5\right)\   

 x (;0] [2,5;)x\in\ \left(-\infty;0\right]\cup\ \left[2,5;\infty\right)  

 x[0; 2,5]x\in\left[0;\ 2,5\right]  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Решить неравенство  2x36  0\frac{2x-3}{6}\ \le\ 0  

 x(1,5; )x\in\left(1,5;\ \infty\right)  

 x[1,5; )x\in\left[1,5;\ \infty\right)  

 x(; 1,5]x\in\left(-\infty;\ 1,5\right]  

 x(; 1.5)x\in\left(-\infty;\ 1.5\right)  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Решить неравенство  62(12x)>6x126-2\left(1-2x\right)>6x-12  

 x(; 8 )x\in\left(-\infty;\ 8\ \right)  

 x(8; )x\in\left(8;\ \infty\right)  

 x(; 8)x\in\left(-\infty;\ -8\right)  

 x [8; )x\in\ \left[8;\ \infty\right)  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Решить неравенство    3x2 +12000\ \ -3x^2\ +1200\le0  

 x(;20)(20; )x\in\left(-\infty;-20\right)\cup\left(20;\ \infty\right)  

 x(20; 20)x\in\left(-20;\ 20\right)  

 x(;20][20; )x\in\left(-\infty;-20\right]\cup\left[20;\ \infty\right)  

 x[20 ; 20]x\in\left[-20\ ;\ 20\right]  

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