
Equação do primeiro grau
Authored by Prof Rogério
Mathematics
8th Grade
CCSS covered
Used 47+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2X + 5 = 23 - X
s = {6}
s = {9}
s = {10}
s = {28}
Tags
CCSS.6.EE.B.5
CCSS.6.EE.B.7
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Minha irmã tem o dobro da idade do meu irmão e a soma das idades deles é igual a 45 anos. Qual é a idade do meu irmão?
s = {60}
s = {45}
s = {30}
s = {15}
Tags
CCSS.6.EE.B.5
CCSS.6.EE.B.7
CCSS.6.EE.B.6
CCSS.6.EE.A.2
CCSS.6.EE.C.9
3.
DRAG AND DROP QUESTION
30 sec • 2 pts
( (a) ) - 15 = 4X - 5 , tem como solução o número 10.
Tags
CCSS.6.EE.B.5
CCSS.6.EE.B.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O dobro do quadrado de um número negativo subtraído 32 é igual a zero. Que número é esse?
-5
-4
-3
-6
-7
Tags
CCSS.6.EE.B.5
CCSS.6.EE.B.6
CCSS.6.EE.A.2
CCSS.6.NS.C.6
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A equação do 2° grau incompleta tem conjunto solução:
S = { 3 }
S = { -3, 3 }
S = { -3 }
S = conjunto vazio
Tags
CCSS.6.EE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Considere um retângulo com 160 metros de perímetro é cujo comprimento mede o triplo da largura. Podemos afirmar que as dimensões desse retângulo são:
30 metros e 15 metros
20 metros e 60 metros
16 metros e 10 metros
28 metros e 10 metros
30 metros e 90 metros
Tags
CCSS.6.EE.B.5
CCSS.6.EE.B.7
CCSS.6.EE.B.6
CCSS.6.EE.C.9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais os coeficientes da equação
x² – 7 = 0 ?
a) a = 0, b = - 7 e c = 0
a = 1, b = 0 e c = 7
a = 1, b = 0 e c = - 7
a = 1, b = 7 e c = 0
Tags
CCSS.HSA.REI.B.4
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