Repaso 3er trimestre
Quiz
•
Mathematics
•
2nd Grade
•
Hard
Salvador Alberto Alcaraz
Used 2+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
En un supermercado, los productos congelados deben mantenerse en refrigeración a una temperatura de −18 °C. Si cuando llegan los nuevos productos el refrigerador se encuentra a −4 °C, y la temperatura de estos baja 2 °C por hora, ¿en cuántas horas alcanzará los −18 °C?
11 horas
9 horas
7 horas
4 horas
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
.- Indica cual de las opciones tiene el número faltante en cada operación para que el resultado sea igual a cero:
18 - 14 + ___
-25 + 45 + ___
-87 - ___+(5 - 7) - 3
-103 + ___-(7 * 5) + 70 -212
4, 20 , 92, -280
4, 25, 97, -380
-4, -20, -92, 280
-4, -25, -97, -380
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Expresa algebraicamente el área de la siguiente figura.
11x² + 6x
10x² +8x
21x² + 6x/2
25x² + 6x/2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Indica el valor de la constante 𝑘 para que las variables x y y satisfagan la relación de proporcionalidad 𝑦 = 𝑘𝑥 respecto al conjunto de datos en la siguiente tabla.
2
0.008
10
125
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
.-Indica la pendiente de la recta que se ilustra a continuación.
1/3
-3
-1
3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Selecciona las situaciones que corresponden a relaciones de proporcionalidad inversa.
I. Altura sobre el nivel del mar y temperatura de ebullición del agua
II. Profundidad del mar y presión del agua sobre metro cuadrado
III. Costo de materias primas y precio final de un producto
IV. Distancia recorrida y gasto energético en una persona
V. Tasa de inflación y poder adquisitivo
II, IV
II, III
I, II
I, V
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Identifica la gráfica de la siguiente relación lineal. 2x+3y+6=0
III
II
I
IV
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