Ecuații si inecuatii exponentiale

Ecuații si inecuatii exponentiale

12th Grade

10 Qs

quiz-placeholder

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Ecuații si inecuatii exponentiale

Ecuații si inecuatii exponentiale

Assessment

Quiz

Mathematics

12th Grade

Medium

Created by

Tatiana Olednic

Used 68+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Compară numerele  23si  222^{-\sqrt{3}}si\ \ 2^{-\sqrt{2}}  

 \ge  

 <<  

 >>  

 \le  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Compară numerele  (45)23si (45)34\left(\frac{4}{5}\right)^{\frac{2}{3}}si\ \left(\frac{4}{5}\right)^{\frac{3}{4}}  

 >>  

 <<  

 ==  

 \le  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 5x=1255^x=\frac{1}{25}  

 x=5x=5  

 x=2x=2  

 x=2x=-2  

 x=5x=-5  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (12)x>(12)3\left(\frac{1}{2}\right)^x>\left(\frac{1}{2}\right)^{-3}  

 x=3x=-3  

 x3x\ge-3  

 x>3x>-3  

 x<3x<-3  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 (13)3+4x9x=127\left(\frac{1}{3}\right)^{3+4x}\cdot9^{-x}=\frac{1}{27}  

 x=6x=-6  

 x=0x=0  

 x=1x=1  

 x=6x=6  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (45)8x(54)3x2\left(\frac{4}{5}\right)^{8-x}\ge\left(\frac{5}{4}\right)^{3x-2}  

 x3x\le-3  

 x3x\ge-3  

 x2x\ge2  

 x5x\le5  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 (149)32x=17\left(\frac{1}{49}\right)^{3-\left|2-x\right|}=\frac{1}{7}  

 x=12x=-\frac{1}{2}  

 x=72x=\frac{7}{2}  

 x=92 , x=12x=\frac{9}{2}\ ,\ x=\frac{1}{2}  

 x=12, x=92x=-\frac{1}{2},\ x=\frac{9}{2}  

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