Simulado de Matemática 9º ano
Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Deborah Cardoso
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(x - 6)² - (x + 6)²
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sabendo que a2 + b2 = 97 e ab = 39, qual o valor de (a + b)2?
133
61
178
582
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
é equivalente a:
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a solução da equação 2x² -18 = 0 ?
S = {- 3 , 3}
S = {- 9 , 9}
S = {3}
S = {9}
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual o valor do discriminante ( ) da equação x² - 4x + 8 = 0 ?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quais os coeficientes da equação: x + 3x² = 5
a = 1, b = 3, c= 5
a = 1, b = 3, c = - 5
a = 3 , b = 1 , c = 5
a = 3, b = 1, c = -5
Tags
CCSS.HSA.CED.A.1
CCSS.HSA.REI.B.4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
É correto afirmar que:
Em uma equação do 2º grau o coeficiente a pode ser zero.
Em uma equação do 2º grau o coeficiente a não pode ser zero.
Em uma equação do 2º grau o coeficiente b não pode ser zero.
Em uma equação do 2º grau o coeficiente c não pode ser zero.
Tags
CCSS.HSA.APR.A.1
CCSS.HSA.CED.A.1
CCSS.HSA.REI.B.4
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