Matemática :)

Matemática :)

1st - 12th Grade

14 Qs

quiz-placeholder

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Matemática :)

Matemática :)

Assessment

Quiz

Mathematics

1st - 12th Grade

Practice Problem

Hard

Created by

Valeria Escolero

Used 2+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿A cuánto equivale π?

3.1416

3.1415

3.1417

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

¿Cuánto es la suma de  47+174\sqrt{7}+1\sqrt{7} ?

 8148\sqrt{14}  

 5145\sqrt{14}  

 575\sqrt{7}  

 676\sqrt{7}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplifica el siguiente radical  80\sqrt{80}  

 848\sqrt{4}  

 464\sqrt{6}  

 545\sqrt{4}  

 454\sqrt{5}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Realice la siguiente ecuación cuadratica    x2+8x+15=0x^2+8x+15=0  


 x1=5, x2=3x_1=5,\ x_2=3  

 x1=5, x2=3x_1=-5,\ x_2=-3  

 x1=4, x2=2x_1=4,\ x_2=2  

 x1=4, x2=2x_1=-4,\ x_2=-2  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

¿Cómo se escribe correctamente la fórmula general?

x=bb+4ac2ax=\frac{b\sqrt{b+4ac}}{2a}

x=b±b4ac2ax=\frac{b\pm\sqrt{b-4ac}}{2a}

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

x=b±b24acx=b\pm\sqrt{b^2-4ac}

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suma los números complejos z=7+4i                w=6+18iz=7+4i\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ w=6+18i  


 14+23i14+23i  

 13+25i13+25i  

 13+22i13+22i  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es el valo de "i"?

1\sqrt{-1}

1\sqrt{1}

1-1

11

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