
Revisão
Authored by Eliana Crocco
Mathematics
8th Grade
Used 1K+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
O quociente de 27x³ por por - 3x² é igual a:
9x
- 9x
9
-9
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Se um paralelogramo tem base medindo 10 m e área medindo 200 m², sua altura é:
10 m
15 m
20 m
25 m
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
2xy . 3x²y =
6x²y³
- 6x³y²
6x³y²
6x³y
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Resolvendo a equação: 4x² = 100 encontramos como solução:
{5}
{-5, 5}
{-5, -5}
Nenhuma solução em R.
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
O valor numérico da expressão: 5p + 8 para p = - 2?
- 2
2
18
6
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Em uma loja, um livro custa x reais e um caderno custa y reais. Se você comprar 5 livros e 8 cadernos pagará:
x + y
5x + y
13x + y
5x + 8y
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
qual monômio representa o produto de 7, a e - b?
- 7ab
7ab
7a + b
- ab
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