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Anon25 [30]
3 years ago
12

PLEASE HELP ASAP!!!!!!! Why is it possible that globalization will have a negative effect on Africa's economy?

Mathematics
1 answer:
Ratling [72]3 years ago
7 0

Answer:

This is your answer ☺️☺️☺️

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Week 1-2 so it would be week one
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What are the solutions of this system of equations? Select all that apply. y = x2 − x − 3 y = −3x + 5
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What are the solutions of this system of equations? Select all that apply. y = x2 − x − 3 y = −3x + 5

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3 years ago
1) UN MOVIL A SE MUEVE DESDE UN PUNTO CON VELOCIDAD CONSTANTE DE 20m/s EN EL MISMO INSTANTE A UNA DISTANCIA DE 1200m, OTRO MOVIL
alisha [4.7K]

Answer:

El móvil B necesita 60 segundos para alcanzar al móvil A y le alcanza una distancia de 2400 metros con respecto al punto de referencia.

Step-by-step explanation:

Supóngase que cada movil viaja en el mismo plano y que el móvil B se localiza inicialmente en la posición x = 0\,m, mientras que el móvil A se encuentra en la posición x = 1200\,m. Ambos móviles viajan a rapidez constante. Si el móvil B alcanza al móvil A después de cierto tiempo, el sistema de ecuaciones cinemáticas es el siguiente:

Móvil A

x_{A} = 1200\,m+\left(20\,\frac{m}{s} \right)\cdot t

Móvil B

x_{B} = \left(40\,\frac{m}{s} \right)\cdot t

Donde:

x_{A}, x_{B} - Posiciones finales de cada móvil, medidas en metros.

t - Tiempo, medido en segundos.

Si x_{A} = x_{B}, el tiempo requerido por el móvil B para alcanzar al móvil A es:

1200\,m+\left(20\,\frac{m}{s} \right)\cdot t = \left(40\,\frac{m}{s} \right)t

1200\,m = \left(20\,\frac{m}{s} \right)\cdot t

t = \frac{1200\,m}{20\,\frac{m}{s} }

t = 60\,s

El móvil B necesita 60 segundos para alcanzar al móvil A.

Ahora, la distancia se obtiene por sustitución directa en cualquiera de las ecuaciones cinemáticas:

x_{B} = \left(40\,\frac{m}{s} \right)\cdot (60\,s)

x_{B} = 2400\,m

El móvil B alcanza al móvil A a una distancia de 2400 metros con respecto al punto de referencia.

3 0
3 years ago
Help! Signs of expression What is the sign of a . b?
Kazeer [188]

Answer:

6-positive

4-positive

2-positive

0-zero

-2-negative

-6-negative

8-positive

Step-by-step explanation:

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What is -1 2/3 • (-5 1/4)? <br><br> -8 3/4 <br><br> -5 1/6 <br><br> 5 1/6 <br><br> 8 3/4
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Your answer is D . Hope I helped :) !
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Read 2 more answers
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