TRABALHO DE RECOMPOSIÇÃO DE MATEMÁTICA
Quiz
•
Mathematics
•
12th Grade
•
Medium
ANDRE APARECIDO FRANCO
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a matriz e determine qual o sistema linear associado à ela:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em uma lanchonete, um cliente comprou 2 fatias de pizza e 3 copos de suco, pagando R$ 20,00.
Outro cliente comprou 4 fatias de pizza e 1 copo de suco, pagando R$ 22,00.
Seja X o preço de uma fatia de pizza e Y o preço de um copo de suco.
Qual é a matriz aumentada que representa esse sistema?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Assinale a alternativa que representa corretamente uma equação do 2º grau na variável x.
x³ - 4 = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Assinale a alternativa que NÃO representa uma equação do 2º grau na variável x.
x³ + 4 = 0
x² + 3x + 2 = 0
2x² - 5 = 0
ax² + bx + c = 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Essa parábola representa uma função do 2º grau com concavidade:
Voltada para cima
Voltada para baixo
Voltada para a direita
Voltada para a esquerda
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com o gráfico abaixo, podemos concluir que o valor do coeficiente "a" é:
a < 0
a = 0
a > 0
a = 1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a equação:
2x² − 5x + 3 = 0
Quais são os valores dos coeficientes a, b e c?
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