Desigualdades matemáticas e Inequações

Quiz
•
Mathematics
•
7th Grade
•
Medium

Renato Neto
Used 7+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Se –30 < –20, então podemos realizar a afirmação que: –30 – 40 < –20 – 40.
Verdadeiro
Falso
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considerando que a > b e b > 2019, a que conclusão é possível chegar com essas desigualdades?
a = 2019
a < 2019
b > a
a > 2019
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Resolva a inequação: 8 – 3x ≤ 12 – 7x, considerando como conjunto universo o conjunto dos números racionais.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Resolva a inequação , considerando o conjunto dos números naturais.
x > 14
x < 9
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Quais das expressões abaixo representam inequações do primeiro grau com uma incógnita?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Considere a inequação: 3(x – 5) + 5x > 3(x – 12). Qual dos seguintes números racionais é uma solução da inequação?
-4,3
4,5
4,8
-4,1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solução de uma inequação é dada por S = {x ∈ Z | x > –5}. Outro modo de escrevê-la é:
S = {–4, –3, –2, –1, 0, …}
S = {–5, –4, –3, –2, –1, …}
S = {–6, –7, –8, –9, ...}
S = {–5, –6, –7, –8, –9, …}
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