Radiciação

Radiciação

9th Grade

10 Qs

quiz-placeholder

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Radiciação

Radiciação

Assessment

Quiz

Mathematics, Education

9th Grade

Practice Problem

Hard

Created by

Roberto P.

Used 21+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Para racionalizar a fração 102\frac{10}{\sqrt{2}} devemos:

Multiplicar por o denominador por 2\sqrt{2}  

Multiplicar por o numerador e o denominador por \sqrt{2}  

Multiplicar por o numerador e o denominador por 1010  

Multiplicar por 102\frac{10}{\sqrt{2}}  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Assinale a resposta correta para  35+753\sqrt{5}+7\sqrt{5}  

 101010\sqrt{10}  

 105\sqrt{10\cdot5}  

 858\sqrt{5}  

 10510\sqrt{5}  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Assinale a alternativa que contém a resposta correta para a simplificação de  9\sqrt{2}+\sqrt{2}-6\sqrt{2} 

 44 

 98+8689\sqrt{8}+\sqrt{8}-6\sqrt{8}  

 424\sqrt{2}  

 464\sqrt{6}  

4.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

Responda V para verdadeiro e F para falso, na racionalização a seguir
 \frac{5}{\sqrt{\ 3}}\Longleftrightarrow\ \frac{5}{\sqrt{3}}\cdot\frac{\sqrt{3}}{\sqrt{3}}=\frac{5\cdot\sqrt{3}}{\left(\sqrt{3}\right)^2}=\frac{5\sqrt{3}}{3}  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Em qual das alternativas está de forma correta a multiplicação de radicais

 352=10\sqrt{3}\cdot\sqrt{5}\cdot\sqrt{2}=\sqrt{10}  

 352=352 \sqrt{3}\cdot\sqrt{5}\cdot\sqrt{2}=\sqrt{3\cdot5\cdot2\text{ }}  

 352=17\sqrt{3}\cdot\sqrt{5}\cdot\sqrt{2}=\sqrt{17}  

 352=35 : 2 \sqrt{3}\cdot\sqrt{5}\cdot\sqrt{2}=\sqrt{3\cdot5\ :\ 2\text{ }}  

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Assinale as alternativas que contém uma resposta correta para 202\frac{\sqrt{20}}{\sqrt{2}}  

 220\sqrt{\frac{2}{20}}  

 202\sqrt{\frac{20}{2}}  

 40\sqrt{40}  

 10\sqrt{10}  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Para racionalizar corretamente, o que devemos colocar nos parênteses da fração a seguir  152(       ) (       )\frac{15}{\sqrt{2}}\cdot\frac{\left(\ \ \ \ \ \ \ \right)\ }{\left(\ \ \ \ \ \ \ \right)}  

 5\sqrt{5}  

 0\sqrt{0}  

 15\sqrt{15}  

 2\sqrt{2}  

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