Intervalos
Quiz
•
Mathematics
•
7th - 8th Grade
•
Practice Problem
•
Hard
Antonio Abrahao
Used 14+ times
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11 questions
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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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