3ra practica

3ra practica

1st - 10th Grade

14 Qs

quiz-placeholder

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3ra practica

3ra practica

Assessment

Quiz

Mathematics

1st - 10th Grade

Easy

CCSS
8.EE.A.2, 8.G.B.8, HSG.SRT.C.6

Standards-aligned

Created by

Marcos Muñoz

Used 1+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La formula general de una ecuación de 2do grado es:

x=b±b24bc2ax=\frac{-b\pm\sqrt{b^2-4bc}}{2a}

x=b±b2+4ac2ax=\frac{b\pm\sqrt{b^2+4ac}}{2a}

x=b±b24ac2ax=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=b±b24ac2bx=\frac{-b\pm\sqrt{b^2-4ac}}{2b}

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Resolver la siguiente ecuación  x2+2x=0x^2+2x=0  

 x1=0   y    x2=1x_1=0\ \ \ y\ \ \ \ x_2=1  

 x1=0   y    x2=2x_1=0\ \ \ y\ \ \ \ x_2=2  

 x1=0   y    x2=3x_1=0\ \ \ y\ \ \ \ x_2=3  

 x1=0   y    x2=2x_1=0\ \ \ y\ \ \ \ x_2=-2  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Hallar el producto de raíces de la siguiente ecuación:  x23x+4=0x^2-3x+4=0  

 44  

 33  

 3-3  

 4-4  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Hallar la Discriminante de la siguiente ecuación: x22x+1=0x^2-2x+1=0  

 33  

 22  

 11  

 00  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Si al cuadrado de un número natural le restamos su triple, obtenemos 130. ¿cuál es el número natural?

x = 10

x = -10

x = 13

x = -13

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Una ecuación es una...

Multiplicación

Igualdad

Diferencia

Operación inversa

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Las ecuaciones de segundo grado tienen:

una sola solución

dos soluciones

tres soluciones

muchas soluciones

ninguna de las anteriores

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