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3 years ago

HELP NEEDED PLEASE!

Mathematics

1 answer:

Setler [38]3 years ago

4 0

Answer:

Step-by-step explanation:

$\frac{4}{3} \pi r^{3} =12\pi \\r=\sqrt[3]{9} \\surface area 4\pi r^{2} = 4\pi (\sqrt[3]{9} )^2=54.372 (3dp)$

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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!.

There is 4 ace cards in total.

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

The probability that the last card dealt is an ace is

$P=\frac{4\times 51!}{52!}$

$P=\frac{4\times 51!}{52\times 51!}$

$P=\frac{4}{52}$

$P=\frac{1}{13}$

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

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3 years ago

What is the value of square root 30 is between witch two integers

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Answer:

Step-by-step explanation:

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8 0

3 years ago

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vekshin1

the answer a is 6 and b is 2

7 0

3 years ago

Which is equivalent to x(-14x + 9)?

victus00 [196]

SO YOU HAVE X(-14X+9). ALL YOU DO IS THE DISTRIBUTION PROPERY OR MULIPLE BY X

SO WE GET -14X^2+9X.

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5 0

4 years ago

1 The legs of a triangle are 6 cm and 8 cm. The hypotenuse is 14 cm. Is it a right triangle?

Vitek1552 [10]

Answer:

this is not a right triangle

Step-by-step explanation:

^ = squared

The formula forthe Pythagorean theorem is a^+ b^ = c^

If this is a right triangle this must be true

6^ + 8^ = 14^

36 + 64 = 196

100 is not equal to 196

So this is not a right triangle

3 0

3 years ago