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vampirchik [111]
3 years ago
7

Factor the difference of two cubes completely. x^3-64 can anyone verify this for me?

Mathematics
1 answer:
Zarrin [17]3 years ago
3 0

x^3-4^3 = (x-4)(x^2+4x+16)=(x-4)(x+4)(x+4)

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The average adult working male spends approximately $70 per week on a
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Step-by-step explanation:

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So we know that:
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a card is chosen from a standard deck of cards. what is the probability that the card is a queen, given that the card is a club?
Dmitrij [34]

Answer:

Probability that card is queen given that card is club is \frac{4}{13}

Step-by-step explanation:

Given : A card is chosen from a standard deck of cards.

To find : What is the probability that the card is a queen, given that the card is a club?

Solution : It is the conditional probability

P(A|B)=\frac{P(A\cap B)}{P(B)}

Let A is probability that card is queen.

Let B is the probability that card is a club.

Probability that card is queen given card is club P(A\cap B)=\frac{4}{52}=\frac{1}{13}

Probability that card is club from deck of 52 cards P(B)=\frac{13}{52}=\frac{1}{4}

To find probability that card is queen given that card is club P(A|B)

P(A|B)=\frac{P(A\cap B)}{P(B)}

P(A|B)=\frac{\frac{1}{13}}{\frac{1}{4}}

P(A|B)=\frac{1\times4}{13\times 1}=\frac{4}{13}

Therefore, Option A is correct.

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X=30 the answer is 30

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