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Com 16 - Evaluación nivel Elementos / Introducción

Authored by ariel gamboa

Mathematics

University

Used 2+ times

Com 16 - Evaluación nivel Elementos / Introducción
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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cuál de las siguientes operaciones no contiene errores?

6x + 3 = 0

6x = 3

x = 1/2

6x + 3 = 0

6x = 0

x = 0

6x + 3 = 0

6x = -3

x = -18

6x + 3 = 0

6x = -3

x = -1/2

6x + 3 = 0

6x = -3

x = 1/2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

En cuál de las siguientes operaciones esta bien calculado el valor de k?

k2 -3k = 6k

k - 3 = 6

k = 9

k2 -3k = 6k

k2 = 9k

k = 9

k2 -3k = 6k

k2 - 9k = 0

k = 9

k2 - 3k = 6k

k2 - 9k = 0

k.(k - 9) = 0

k = 0 ó k = 9

k2 - 3k = 6k

k2 - 9k = 0

k.(k - 9) = 0

k = 9

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicar cuál de los siguientes gráficos representa a la parábola x2 + y -3x +2 = 0?

Media Image
Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indicar para que valores de x se verifica la siguiente función:

x . (x - 1) . (x + 2) = 0

x1 = 1

x2 = -2

x1 = -1

x2 = 2

x1 = -1

x2 = 2

x3 = 0

x1 = 1

x2 = -2

x3 = 0

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicar cuál de los gráficos representa a la siguiente función:

2x + y - 2 = 0

Media Image
Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indicar cuál / cuáles de las siguientes expresiones son equivalentes a:

a2 - b2

(a - b) . (a - b)

(a + b) . (a + b)

(a - b)2

(a - b) . (a + b)

a2 - 2ab + b2

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