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Amiraneli [1.4K]
2 years ago
10

Suppose that two cards are randomly selected from a standard​ 52-card deck. ​(a) what is the probability that the first card is

a queen and the second card is a queen if the sampling is done without​ replacement? ​(b) what is the probability that the first card is a queen and the second card is a queen if the sampling is done with​ replacement? g
Mathematics
1 answer:
Charra [1.4K]2 years ago
8 0
Hey ,here is the answer to ur question....!
(a).p(that the first card is a queen)=4/52=2/26=1/13
P(the card is a queen if the sampling is done without replacement)=3/52
(B).p(the first card is a queen)=4/52=1/13
P(the second card is queen of the sampling is done with replacement)=1/13....
Hope this helps you....!
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How does your figure look like?
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3 years ago
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Point K is on line segment JL. Given JK = 2x – 2, KL
Scorpion4ik [409]

Answer:

KL = 10

Step-by-step explanation:

JK + KL = JL

2x – 2 + x – 9 =  2x + 8

Combine like terms

3x -11 = 2x+8

Subtract 2x from each side

3x-2x -11 = 2x+8-2x

x-11 = 8

Add 11 to each side

x-11+11 = 8+11

x = 19

KL = x – 9

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     = 10

8 0
3 years ago
Plz help me I reaallllly neeed it plz Thank you I need to finish it Today
jek_recluse [69]
Picture please because I can’t help without a picture or something
6 0
3 years ago
Can you help me with this problem please
Over [174]

Remark

I think you want us to do both 3 and 4


Three

QR is 4 points going left from the y axis + 2 points going right from the y axis.

QR = 6 units long.


RT is 4 units above the x axis and 3 units below the x axis

RT = 7 units long


TS = 3 units. For this one you just go from T to S. The graph really helps you. You just need to count.


Problem 4

You need to find the area of the combined figure. You could do it as a trapezoid, which might be the easiest way. I'll do that first.


Area = (b1 + b2)*h/2


Givens

B1 = QR = 6

B2 = UT + TS = 6 + 3 = 9

h = RT = 7


Area

Area = (6 + 9)*7/2

Area = 15 * 7 / 2

Area = 52.5


Comment

You could break this up into a rectangle + a triangle

Find the area of QRTU and add the Area of triangle RTS


<em>Area of the rectangle </em>= L * W

L = RT = 7

W = QR = 6

Area = 7 *6 = 42


<em>Area of the triangle</em> = 1/2 * B * H

B = TS = 3

H = RT =7

Area = 1/2 * 3 * 7

Area = 1/2 * 21

Area = 10.5


Total Area = 42 + 10.5 = 52.5 Both answers agree.

3 0
2 years ago
Help picture is shown!!!!
daser333 [38]
D,

Symmetry is when you split the shape, but they look the same. 
6 0
3 years ago
Read 2 more answers
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