Quiz De MatemÁticas Novenos

1.

la ecuación que pertenece a la siguiente grafica es:

Y = 2x-3

y = -2x - 3

y = 2x

y = 2x + 1

The equation that corresponds to the given graph is Y = 2x-3. This can be determined by observing that the graph has a positive slope of 2 and a y-intercept of -3. The equation Y = 2x-3 represents a linear function with a slope of 2 and a y-intercept of -3, which matches the characteristics of the given graph.

Explanation

The equation that corresponds to the given graph is Y = 2x-3. This can be determined by observing that the graph has a positive slope of 2 and a y-intercept of -3. The equation Y = 2x-3 represents a linear function with a slope of 2 and a y-intercept of -3, which matches the characteristics of the given graph.

2. responde las preguntas de la 1 a la 3 teniendo en cuenta la siguiente información ENTRENAMIENTO DE ATLETISMO

La grafica muestra la distancia recorrida por Pedro, pablo y Juan durante un entrenamiento De atletismo. De la gráfica anterior se puede afirmar que

Los tres atletas recorrieron la misma distancia

Pedro corrió durante menos tiempo que juan y pablo

Pablo recorrió mas distancia que pedro y mas que juan

Los tres atletas estuvieron corriendo durante el mismo tiempo

From the given graph, we can see that Pedro's line is shorter than Juan and Pablo's lines, indicating that Pedro ran for a shorter amount of time compared to Juan and Pablo. Therefore, the correct answer is "Pedro corrió durante menos tiempo que juan y pablo" (Pedro ran for less time than Juan and Pablo).

Explanation

From the given graph, we can see that Pedro's line is shorter than Juan and Pablo's lines, indicating that Pedro ran for a shorter amount of time compared to Juan and Pablo. Therefore, the correct answer is "Pedro corrió durante menos tiempo que juan y pablo" (Pedro ran for less time than Juan and Pablo).

3. Responda las preguntas de la 4 hasta la 6 de acuerdo a la siguiente información El grafico representa el recorrido efectuado por maría y pablo en dos automóviles al realizar un viaje de 100 km

El tiempo que tardó maría en recorrer los 100 km fue:

Más de una hora

Menos de media hora

Entre una y dos horas

Entre media y una hora

Based on the given information, the graph represents the distance traveled by Maria and Pablo in two cars during a 100 km trip. Since Maria's time to cover the 100 km is stated to be "Entre media y una hora" (between half an hour and one hour), it can be inferred that she took more than half an hour but less than an hour to complete the journey.

Explanation

Based on the given information, the graph represents the distance traveled by Maria and Pablo in two cars during a 100 km trip. Since Maria's time to cover the 100 km is stated to be "Entre media y una hora" (between half an hour and one hour), it can be inferred that she took more than half an hour but less than an hour to complete the journey.

4. El número de veces que se encontraron pablo y maría durante su recorrido fue de:

5

4

6

8

During their journey, Pablo and María met each other a total of 6 times.

Explanation

During their journey, Pablo and María met each other a total of 6 times.

5. El tiempo que tarde pablo en recorrer los 50 primeros km fue:

Más de media hora

Menos de un cuarto de hora

Entre media y una hora

Más de un cuarto y menos de media hora

Pablo tardó más de un cuarto de hora pero menos de media hora en recorrer los 50 primeros km. Esto significa que su tiempo de recorrido estuvo entre los 15 y los 30 minutos.

Explanation

Pablo tardó más de un cuarto de hora pero menos de media hora en recorrer los 50 primeros km. Esto significa que su tiempo de recorrido estuvo entre los 15 y los 30 minutos.

6. Durante el entrenamiento, la mayor velocidad que alcanzo pablo fue:

En los últimos 40 minutos

En los primeros 20 minutos

Entre el minuto 20 y el minuto 30

Entre el minuto 30 y el minuto 60

Durante los primeros 20 minutos del entrenamiento, Pablo alcanzó la mayor velocidad.

Explanation

Durante los primeros 20 minutos del entrenamiento, Pablo alcanzó la mayor velocidad.

7. Por reparar una lavadora, un servicio tecnico, cobra $ 12.000 por cada hora de trabajo tecnico más $ 30.000 por el repuesto. si al reparar la maquina, se ocupa 4 horas. cuanto debe cancelar ?

$48.000

$120.000

$78.000

$18.000

The question states that a technical service charges $12,000 per hour of technical work plus $30,000 for the spare part. If the machine takes 4 hours to repair, the total cost can be calculated by multiplying the hourly rate by the number of hours and adding the cost of the spare part. Therefore, the total cost would be $12,000 x 4 + $30,000 = $48,000 + $30,000 = $78,000.

Explanation

The question states that a technical service charges $12,000 per hour of technical work plus $30,000 for the spare part. If the machine takes 4 hours to repair, the total cost can be calculated by multiplying the hourly rate by the number of hours and adding the cost of the spare part. Therefore, the total cost would be $12,000 x 4 + $30,000 = $48,000 + $30,000 = $78,000.

8. La relación entre la distancia d recorrida por juan y el tiempo t empleado para recorrerla está representada por la ecuación:

d= 10t + 100

d= 15t + 100

d= 100t +15

d= 1/10 t +15

The given equation represents the relationship between the distance (d) traveled by Juan and the time (t) taken to travel that distance. The equation is in the form of y = mx + c, where m represents the rate of change (10 in this case) and c represents the constant term (100 in this case). This means that for every unit increase in time, the distance traveled by Juan increases by 1/10th of that unit, starting from an initial distance of 100.

Explanation

The given equation represents the relationship between the distance (d) traveled by Juan and the time (t) taken to travel that distance. The equation is in the form of y = mx + c, where m represents the rate of change (10 in this case) and c represents the constant term (100 in this case). This means that for every unit increase in time, the distance traveled by Juan increases by 1/10th of that unit, starting from an initial distance of 100.

9. De acuerdo a la siguiente función y = - 3x - 8, el punto que pasa por la anterior función es:

(0,0)

(-1, -5)

(3,-1)

(0,-8)

The correct answer is (-1, -5) because when we substitute x = -1 into the given function y = -3x - 8, we get y = -3(-1) - 8 = 3 - 8 = -5. Therefore, the point (-1, -5) satisfies the equation of the function.

Explanation

The correct answer is (-1, -5) because when we substitute x = -1 into the given function y = -3x - 8, we get y = -3(-1) - 8 = 3 - 8 = -5. Therefore, the point (-1, -5) satisfies the equation of the function.

10. El resultado de la siguiente operación

es

6 – 15i

5 – 2i

(21 - 19i)/13

(21 + 19i)/13

The correct answer is (21 - 19i)/13 because when we divide (21 - 19i) by 13, we get the result (21/13) - (19i/13). This can be simplified to 1.615 - 1.462i.

Explanation

The correct answer is (21 - 19i)/13 because when we divide (21 - 19i) by 13, we get the result (21/13) - (19i/13). This can be simplified to 1.615 - 1.462i.