
Matemática - Resolver Equações Polinomiais do 1º Grau
Mathematics
9th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se 3x + 4 = 10, qual é o valor de x?
x = 1
x = 2
x = 3
x = 4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução da equação 4x = 16?
x = 2
x = 3
x = 4
x = 5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Complete: As equações do 1º grau são também conhecidas como equações _______.
Lineares
Quadráticas
Cúbicas
Nenhuma das anteriores.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução da equação 2x + 3 = 7?
x = 1
x = 2
x = 3
x = 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é uma aplicação de equações do 1º grau?
Calcular a área de um círculo
Resolver problemas de movimento
Determinar a raiz quadrada de um número
Nenhuma das anteriores.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a diferença entre as expressões 2x - 20 e 20 - 2x?
A) A ordem dos termos
B) O sinal de subtração
C) O valor de x
D) Não há diferença.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Complete: A expressão '2x - 20 = 100' está incorreta porque ____.
O sinal de subtração está errado
A ordem dos termos está errada
O resultado deveria ser 200
Não há erro.
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