Se liga - 2º trimestre - 8º ano
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Sabendo que o valor de 57 é 78 125, qual o resultado de 58?
78 130
396 250
390 625
781 250
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Determine o valor da expressão 20x3 + 2x2y5, para x = - 4 e y = 2.
256
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
o
O valor de cada expressão: (29 x 211 x 23) : (27)3
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Determine a expressão algébrica que representa o perímetro do retângulo.
5x + 5
5x - 5
10x - 10
10x + 10
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Qual é o valor numérico de x² – 2x + 2 para x = – 4?
18
26
2
30
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Sabemos que para multiplicar dois ou mais monômios, multiplicamos os coeficientes entre si e multiplicamos as partes literais entre si, adicionando os expoentes das variáveis iguais. Sabemos ainda que a área de um retângulo é dada pela multiplicação das duas dimensões (comprimento e largura). Qual é a área da figura abaixo?
18xy
-18xy
18x²y
-18x²y
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