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shusha [124]
3 years ago
7

In a standard deck of cards there are 13 spades, 13 clubs, 13 hearts, and 13 diamonds. The spades and the clubs are black and th

e hearts and the diamonds are red.
If two cards are chosen at random from a deck, one at a time, and replaced after each pick, what is the probability that a black card is chosen first and a heart is chosen second?

A- 1/8
B- 1/2
C- 2/3
D- 3/4
Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0
A 1/8.
hope this helps
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Answer:

El perímetro del triángulo rectángulo es aproximadamente 29.627.

Step-by-step explanation:

Las coordendas de los vértices del triángulo rectángulo son A(x,y) = (1,-2), B(x,y) = (-8,4) y C(x,y) = (5,2). En primer lugar, determinamos las longitudes de los segmentos AB, BC y AC por el Teorema de Pitágoras:

AB = \sqrt{(-8-1)^{2}+[4-(-2)]^{2}}

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AC =\sqrt{(5-1)^{2}+[2-(-2)]^{2}}

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El perímetro del triángulo (p) es la suma de todos estos segmentos:

p = AB + BC + AC

p \approx 29.627

El perímetro del triángulo rectángulo es aproximadamente 29.627.

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