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PIT_PIT [208]
3 years ago
10

Two cards are drawn without replacement from an ordinary deck, find the probabaility that the second is a face card, given thath

at the second is not a seven, given that the first is a seven. what is the conditional probability?
Mathematics
1 answer:
Greeley [361]3 years ago
6 0
Answer is 1.1% chance:
standard deck of cards has 52 cards
jack, queen, and king are face cards, and there are four suits, so in total there are  7 face cards in the deck. There are 4 seven cards in the deck. The probability that the first card is a seven is 0.076923077--> 7.7%, then there are 7 face cards so 7/51 chance 0.137254902--> 13.7% (but that is after 7.7% of 100% has already happened, so we are looking at 13.7% chance of 7.7% chance of 100% cards. Multiply both numbers and you get 0.010558069--> 1.1% chance 
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7) If AB = 3x - 8 and BC = x + 12, find the value of x.​
Finger [1]

Answer:

Step-by-step explanation:

The question is incomplete. Here is the complete question.

In a square ABCD, if AB = (3x-8) and BC = (x+12), find the value of x. Also, find the length of each side of the square.

Note that all sides of a square are equal. Hence AB = BC for the square ABCD.

Given AB = (3x-8) and BC = (x+12), then AB = BC

3x-8 = x+12

collect like terms;

3x-x = 12+8

2x = 20

x = 20/2

x = 10

Substitute x = 10 into any of the side. Using side AB

AB = 3x-8

AB = 3(10)-8

AB = 30-8

AB = 22

BC = x+12

BC = 10+12

BC = 22

<em>Hence x = 10 and the length of each side is 22</em>

4 0
4 years ago
1. Tran had $40 saved for a new bike. The next week, he had $68. At what rate of change
mixas84 [53]

Answer:

$28 over a whole week

6 0
4 years ago
What is 0.13% of 4400? Round to the nearest hundredth (if necessary).
Valentin [98]
572.
13 percent *4400 =

(13:100)*4400 =

(13*4400):100 =

57200:100 = 572
5 0
3 years ago
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He has sixteen shelves

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Juli2301 [7.4K]

 

I. xy + 2y=3       Not linear equation because is grade 2 equation  (xy).

II. x-2y = y              Are linear equations in two unknowns  (x and y).

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<h2>Corect ansver:    C)  II and III only</h2><h2></h2>

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6 0
4 years ago
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