Intervalos

Intervalos

7th - 8th Grade

11 Qs

quiz-placeholder

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Intervalos

Intervalos

Assessment

Quiz

Mathematics

7th - 8th Grade

Practice Problem

Hard

Created by

Antonio Abrahao

Used 14+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Qual a escrita em forma de conjunto, corresponde ao intervalo [-1,7]?

{x e R/ -1 <=x<=7}

{x e R/ -1 <x<=7}

{x e R/ -1 <=x<7}

{x e R/ -1 <x<7}

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Qual a escrita em forma de conjunto, corresponde ao intervalo [10,11[

{x e R/ 10 <=x<11}

{x e R/ 10 <x<11}

{x e R/ 10 <=x<=11}

{x e R/ 10 <x<=11}

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(Mack) Considere a sequência de afirmações:

1) 7-1 ϵ [2,7]

2) 6 c ]-3,5]

3) {3,14} c ]-2,4]

4) -3 ϵ [2,2]

5) 20 ϵ [-3,3[

Associando-se V ou F a cada afirmação, nesta ordem, conforme seja verdadeira ou falsa , tem-se:

F,F,V,V,V

F,V,V,V,V

F,F,V,F,V

F,F,F,V,V

V,V,V,V,F

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(MACK) sejam os conjuntos:

A= {x ϵ R/ 0 <=x<=3}

B= {x ϵ R/ x<=3}

C = {x ϵ R/ -2 <=x<=3}

O conjunto (B-A) intersecção C é:

Vazio

{x ϵ R/ x<0}

{x ϵ R/ x> -2}

{x ϵ R/ -2 <=x<0}

{x ϵ R/ -2 <x<3}

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(MACK) A intersecção dos conjuntos A= [-2; 1] e B= [-1; 2] é:

Vazio

A

B

{x ϵ R/ -2 <=x<= 2}

{x ϵ R/ -1 <=x<= 1}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual o menor número inteiro que pertence ao intervalo

] -π ; 0 ] ?

3,1415

0

-4

-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual o intervalo que é solução da inequação:

- x > 2 ?

]-∞, 2[

[x, 2[

]2,+∞[

]-∞, - 2[

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