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Desafío Matemático de 9º Grado

Authored by Wendy Norabuena

Mathematics

9th Grade

Used 2+ times

Desafío Matemático de 9º Grado
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplifica la expresión: 3x + 5x - 2.

3x + 2

5x - 2

8x - 2

8x + 2

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Resuelve el sistema de ecuaciones: 2x + 3y = 6 y x - y = 2.

(3, 1)

(0, 2)

(12/5, 2/5)

(2, 0)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcula el seno de 30 grados.

1.0

0.25

0.75

0.5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplifica el radical: √(50).

√(100/2)

10√5

5√2

2√25

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Calcula la suma de ángulos internos de un undecágono

1620°

4000°

1720°

780°

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Resuelve el producto notable: (a + b)².

a² + b²

2a + 2b

a² + 2b²

a² + 2ab + b²

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

49/41

49/9

41/9

50/41

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