Raíces I

Raíces I

9th - 10th Grade

11 Qs

quiz-placeholder

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Raíces I

Raíces I

Assessment

Quiz

Mathematics

9th - 10th Grade

Practice Problem

Hard

Created by

Herma Casanova

Used 55+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

¿Cuál de las igualdades es verdadera?

 6=36\sqrt{6}=36  

 62=126^2=12  

 6=3\sqrt{6}=3  

 36=6\sqrt{36}=6  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Los cuadrados perfectos son aquellos números cuya raíz es un número natural.

De los siguientes, ¿Cuál es un cuadrado perfecto?

47

48

49

50

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

La descomposición en factores de 72 que NO tiene un factor cuadrado perfecto es:

 72=9872=9\cdot8  

 72=32472=3\cdot24  

 72=41872=4\cdot18  

 72=36272=36\cdot2  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al descomponer  108\sqrt{108}  lo máximo posible, se obtiene

 3123\sqrt{12}  

 36336\sqrt{3}  

 636\sqrt{3}  

No se puede

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al factorizar por  5\sqrt{5}   la expresión:
 75420+31257\sqrt{5}-4\sqrt{20}+3\sqrt{125}  

 (742+35)5=145\left(7-4\cdot2+3\cdot5\right)\sqrt{5}=14\sqrt{5}  

 (744+325)5=665\left(7-4\cdot4+3\cdot25\right)\sqrt{5}=66\sqrt{5}  

 (74+3)5=65\left(7-4+3\right)\sqrt{5}=6\sqrt{5}  

No se puede

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 ¿Cuánto es  110110\sqrt{110}\cdot\sqrt{110}  ?

 110\sqrt{110}  

 1102110^2  

 220\sqrt{220}  

 110110  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al amplificar la fracción por 3\sqrt{3}  obtenemos:
 723=72 333=\frac{72}{\sqrt{3}}=\frac{72\ \cdot\sqrt{3}}{\sqrt{3}\cdot\sqrt{3}}=  

 7233=72\frac{72\sqrt{3}}{\sqrt{3}}=72  

 7233=243\frac{72\sqrt{3}}{3}=24\sqrt{3}  

 72 39=83\frac{72\ \cdot\sqrt{3}}{9}=8\sqrt{3}  

 7236=123\frac{72\sqrt{3}}{6}=12\sqrt{3}  

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