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Aleks [24]
3 years ago
15

4. Five cards are randomly chosen from a deck of 52 (13 denominations with 4 suits). a. How many ways are there to receive 5 car

ds from a deck of 52
Mathematics
1 answer:
yan [13]3 years ago
4 0

Answer:

There are 2,598,960 ways to receive 5 cards from a deck of 52.

Step-by-step explanation:

The order in which the cards are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

a. How many ways are there to receive 5 cards from a deck of 52?

C_{52,5} = \frac{52!}{5!(47)!} = 2598960

There are 2,598,960 ways to receive 5 cards from a deck of 52.

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The surface area of the given shape is 285.01 ft²

<h3>Surface area of a cone </h3>

From the question, we are to calculate the surface area of the given shape.

The given shape in the diagram is a cone.

The surface area of a cone is given by the formula,

S = \pi r(r+l)

Where S is the surface area

r is the radius

and l is the slant height

First, we will calculate the slant height of the cone

l^{2}=9^{2} +5.6^{2} (<em>Pythagorean theorem</em>)

l^{2}=81+31.36

l^{2}=112.36

l}=\sqrt{112.36}

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∴ The slant height is 10.6 ft

Now, for the surface area

S = \pi \times 5.6(5.6+10.6)
S = \pi \times 5.6(16.2)

S = 90.72\pi  \ ft^{2}

S = 285.0053 \ ft^{2}

S ≅ 285.01 ft²

Hence, the surface area of the given shape is 285.01 ft²

Learn more on Calculating surface area of a cone here: brainly.com/question/27812847

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