Revisão

Revisão

8th Grade

15 Qs

quiz-placeholder

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Algebraic Fraction and Algebraic Formulae

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Revisão

Revisão

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Eliana Crocco

Used 1K+ times

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15 questions

Show all answers

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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