Sistematizando 2º etapa 8º ano
Quiz
•
Mathematics
•
8th Grade
•
Medium

QUELIANE ROCHA
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
30x
4x
6x
1x
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quanto resulta a expressão 10k - 9k - (12k + 3k - 10k) ?
Não sei fazer
Claro que é 2k
Acho que é 4k
Com certeza é -4k
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O produto -2 . (-15x) é igual a
-17x
17x
-30x
+30x
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Em um teatro foram foram vendidos uma quantidade a de ingressos para os adultos e uma quantidade c de ingressos para as crianças. O valor do ingresso do adulto é 48 reais e o preço do ingresso para crianças é metade igual a metade do preço do ingresso do adulto. A expressão algébrica que representa o total arrecadado para uma apresentação nesse teatro é
48a + 24c
48a - 28c
48c + 24a
48c - 24a
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das expressões algébricas representa uma o perímetro da figura?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O trinômio 9x2-12x+4 resulta em que produto notável.
(3x + 2)2
(3x - 2)2
(9x + 4)2
(9x - 4)2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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