Saresp 2º treino 8º ano
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
QUELIANE ROCHA
Used 9+ times
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor numérico da expressão 𝟐𝐱² − 𝟓𝐱 + 𝟗 quando 𝐱 = − 𝟐 ?
-9
11
15
27
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
12
18
24
36
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Everaldo comprou uma Smart-TV e esqueceu de pagar a última prestação no valor de R$230,00. Será cobrado juros de 2% sobre o valor dessa prestação, mais uma multa de R$10,00. Considerando x o valor da prestação na expressão: 1,02x + 10, que representa a dívida de Everaldo, podemos afirmar que o novo valor de sua prestação será de:
R$ 234,60
R$ 240,00
R$ 244,60
R$ 276,00
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a expressão algébrica que representa o volume do cubo a seguir?
15 x³
15 x²
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se você dividir o cubo da soma (–10y + 13y)³ pela soma (14y³ + 13y³ ), terá como resultado:
0
1
y
27y³
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Assinale a alternativa que representa a equação cuja solução é o par ordenado (7, -3):
2x-2y=20
2x+2y=20
3x-5y=20
x+y=20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“Em um estacionamento, há carros e motos, totalizando 25 veículos e 70 rodas. Quantos carros e quantas motos há nesse estacionamento?” Considerando “x” a quantidade de carros e “y” a quantidade de motos, o sistema de equações do 1º grau que melhor representa a situação-problema é:
2x+y=25
x+4y=70
4x+y=70
x+2y=25
x+y=70
4x+2y=25
x+y=25
4x+2y=70
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