PROBLEMAS CON ECUACIONES DE 2º GRADO
Quiz
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Javier Cuevas
Used 8+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué número multiplicado por 4 es 5 unidades menor que su cuadrado?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula tres números consecutivos tales que la suma de sus cuadrados sea 365
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una fotografía rectangular mide 14 cm de base y 10 cm de altura. Alrededor de la foto hay un margen de igual anchura para la base que para la altura. Halla el ancho del margen, sabiendo que el área total de la foto y el margen es de 252 cm2.
14x + 10x = 252
(14+2x)(10+2x)=252
(14+x)(10+x)=252
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El triple del cuadrado de un número aumentado en su duplo es 85 ¿cuál es el número?
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un padre dice: "El producto de la edad de mi hijo hace 5 años por el de su edad hace 3 años es mi edad actual, que son 35 años". Calcula la edad de mi hijo.
x-5 · x-3 = 35
(x-5)·(x-3)=35
(x-5)+(x-3)=35
(x+5)-(x-3)=35
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Halla las dimensiones de un rectángulo cuya área es 21 m2, sabiendo que sus lados se diferencian en 4 m.
(x+4)·(x-4)=21
x·(x+4)=21
x · 4x = 21
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
En un triángulo rectángulo el cateto mayor mide 4cm menos que la hipotenusa y 4 cm más que el otro cateto.
hipotenusa: x
cat. mayor: x-4
cat. menor: x-8
hipotenusa: x+4
cat. mayor: x
cat. menor: x-4
hipotenusa: x+4
cat. mayor: x-4
cat. menor: x+4
hipotenusa: x
cat. mayor: 4-x
cat. menor: 4+x
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