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ad-work [718]
4 years ago
11

A company that makes cartons finds that the probability of producing a carton with a puncture is 0.03​, the probability that a c

arton has a smashed corner is 0.08​, and the probability that a carton has a puncture and has a smashed corner is 0.002. Answer parts​ (a) and​ (b) below. ​(a) Are the events​ "selecting a carton with a​ puncture" and​ "selecting a carton with a smashed​ corner" mutually​ exclusive? Explain. A. ​No, a carton cannot have a puncture and a smashed corner. B. ​No, a carton can have a puncture and a smashed corner. Your answer is correct.C. ​Yes, a carton cannot have a puncture and a smashed corner. D. ​Yes, a carton can have a puncture and a smashed corner. ​(b) If a quality inspector randomly selects a​ carton, find the probability that the carton has a puncture or has a smashed corner. The probability that a carton has a puncture or a smashed corner is nothing.
Mathematics
1 answer:
matrenka [14]4 years ago
4 0

Answer:

(a) Having a smashed corner need to now not depend on whether or not the carton had a puncture or not,

so these occasions have to be independent.

One manner to check it the usage of the given probabilities:

If P(A)P(B) = P(A and B), then the events are independent.

Here we have : (0.05)(0.08) which is 0.004, that is P(A and B), so the events are  independent.

(b) P(A or B) = P(A)+P(B)-P(A and B) = 0.05 + 0.08 – 0.004 = 0.126  

Step-by-step explanation:

Please mark me brainliest!

I can help with any other questions you may have!

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6x-22+12x+2=100 what the measure of ayx​
ladessa [460]
6x+12x=100-2+22
18x=120
x=120/18=6.667
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3 years ago
Define in words mutually exclusive events. Choose the correct answer below. A. Events A and B are mutually exclusive if A contai
Nostrana [21]

Answer:

B. Events A and B are mutually exclusive if A and B have no sample points in common.

Step-by-step explanation:

When two events( call them A and B) are mutually exclusive , it is impossible for them to happen together.

P(A and B) = 0

"The probability of A and B together equals 0 (impossible)"

Hence, the correct answer is B.

B. Events A and B are mutually exclusive if A and B have no sample points in common.

4 0
3 years ago
Which set of coordinates, when paired with (-3, -2) and (-5, -2), result in a square?
taurus [48]
The answers are (-3, -4) and (-5, -4).
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3 years ago
Ejercicio Nº 4 Desde la parte superior de un acantilado de 80 metros de altura se dispara horizontalmente una piedra a razón de
vaieri [72.5K]

Answer:

1) La piedra permanece en el aire en 4 segundos.

2) La piedra alcanza una distancia horizontal de 32 metros.

3) La velocidad de la piedra con la que alcanza el suelo es aproximadamente 40.792 metros por segundo.

Step-by-step explanation:

El problema nos indica un caso de tipo parabólico, el cual consiste en la suma de un movimiento horizontal a velocidad y un movimiento uniforme acelerado por la gravedad desde el reposo.

1) El tiempo total que la piedra permanecería en el aire es tiempo requerido entre la parte superior del acantilado y el fondo. La ecuación cinemática que vamos a utilizar es la siguiente:

y = y_{o} + v_{o,y}\cdot t +\frac{1}{2}\cdot g \cdot t^{2} (Ec. 1)

Donde:

y_{o} - Altura inicial, medida en metros.

y - Altura final, medida en metros.

v_{o,y} - Velocidad vertical inicial de la piedra, meadida en metros por segundo.

g - Aceleración gravitacional, medido en metros por segundo al cuadrado.

t - Tiempo, medido en segundos.

Si sabemos que y_{o} = 80\,m, v_{o,y} = 0\,\frac{m}{s} y g = -10\,\frac{m}{s^{2}}, entonces encontramos la siguiente función cuadrática:

-5\cdot t^{2}+80 = 0 (Ec. 2)

El tiempo en el que la piedra permanece en el aire es:

t = 4\,s

La piedra permanece en el aire en 4 segundos.

2) La distancia horizontal es descrita por la siguiente fórmula cinemática:

x = x_{o}+v_{o,x}\cdot t (Ec. 3)

Donde:

x_{o} - Posición horizontal inicial, medido en metros.

x - Posición horizontal final, medido en metros.

v_{o,x} - Velocidad horizontal inicial de la piedra, medida en metros por segundo.

Si sabemos que x_{o} = 0\,m, v_{o,x} = 8\,\frac{m}{s} and t = 4\,s, entonces la distancia horizontal alcanzada por la piedra es:

x = 0\,m + \left(8\,\frac{m}{s}\right)\cdot (4\,s)

x = 32\,m

La piedra alcanza una distancia horizontal de 32 metros.

3) En primer lugar, determinamos los componentes vertical y horizontal de la velocidad final de la piedra por medio de las siguientes fórmulas cinemáticas:

Velocidad final horizontal (v_{x}), medida en metros por segundo.

v_{x} = \frac{x-x_{o}}{t} (Ec. 4)

Velocidad final vertical (v_{y}), medida en metros por segundo.

v_{y} = v_{o,y}+g\cdot t (Ec. 5)

Si x = 32\,m, x_{o} = 0\,m. t = 4\,s, v_{o,y} = 0\,\frac{m}{s} y  g = -10\,\frac{m}{s^{2}}, los componentes de la velocidad final de la piedra son:

v_{x} = \frac{32\,m-0\,m}{4\,s}

v_{x} = 8\,\frac{m}{s}

v_{y} = 0\,\frac{m}{s}+\left(-10\,\frac{m}{s^{2}} \right) \cdot (4\,s)

v_{y} = -40\,\frac{m}{s}

Por último, determinamos la velocidad final de la piedra por Teorema de Pitágoras:

v = \sqrt{v_{x}^{2}+v_{y}^{2}} (Ec. 6)

v = \sqrt{\left(8\,\frac{m}{s} \right)^{2}+\left(-40\,\frac{m}{s} \right)^{2}}

v \approx 40.792\,\frac{m}{s}

La velocidad de la piedra con la que alcanza el suelo es aproximadamente 40.792 metros por segundo.

5 0
3 years ago
Calculate the slope for coordinates (3,2) (4,6)​
mr Goodwill [35]

Answer:The slope is 4.

Step-by-step explanation:

3 is x 1, 2 is y 2, 4 is also x 1, and 6 is y 2.

6-2/4-1

4/1

4

3 0
3 years ago
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