A 3-card hand is dealt from a standard 52-card deck, and then one of the 3 cards is chosen at random. If only one of the cards
2 answers:
<u>Answer:</u>
P (chosen card is 3) =
<u>Step-by-step explanation:</u>
We are given that a 3-card hand is dealt from a standard 52-card deck, and then one of the 3 cards is chosen at random.
Given that only one of the cards is a 3, we are to find the probability that the chosen card is a 3.
Since only one card is a 3 and one card is chosen so:
P (chosen card is 3) = 1 / 3
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Answer:
Step-by-step explanation:
= x - 5 ( x ≥ 3 )
( )² = ( x - 5 )²
x - 3 = x² - 10x + 25
x² - 11x + 28 = 0
(x - 4)(x - 7) = 0
= 7
= 4
Check the answer:
1). x = 7
= 7 - 2
√4 = 2
2 = 2
2). x = 4
= 4 - 5
1 = - 1 (False statement) ⇒ x = 4 is an extraneous solution.
