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motikmotik
3 years ago
10

PLEASE HELP ASAP 25 PTS

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer:

B

Step-by-step explanation:

f(x) = y = x^2 + 7

x = y^2 + 7

x - 7 = y^2

sqrt(y^2) = sqrt(x - 7)

y = +/- (x - 7)

Answer B

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A deck of ordinary cards is shuffled and 13 cards are dealt. What is the probability that the last card dealt is an ace?
alexandr1967 [171]

Answer:

The probability that the last card dealt is an ace is \frac{1}{13}.

Step-by-step explanation:

Given : A deck of ordinary cards is shuffled and 13 cards are dealt.

To find : What is the probability that the last card dealt is an ace?

Solution :

There are total 52 cards.

The total arrangement of cards is 52!.

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Arrangement for containing ace as the 13th card is 4\times 51!.

The probability that the last card dealt is an ace is

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Therefore, the probability that the last card dealt is an ace is \frac{1}{13}.

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