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3 years ago

Describe how computer are used in ticket counter?

Computers and Technology

1 answer:

m_a_m_a [10]3 years ago

6 0

Answer:

These systems are commonly used in facilities such as public libraries to ensure equitable use of limited numbers of computers. Bookings may be done over the internet or within the library itself using a separate computer set up as a booking terminal.

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A person gets 13 cards of a deck. Let us call for simplicity the types of cards by 1,2,3,4. In How many ways can we choose 13 ca

natima [27]

Answer:

There are 5,598,527,220 ways to choose 5 cards of type 1, 4 cards of type 2, 2 cards of type 3 and 2 cards of type 4 from a set of 13 cards.

Explanation:

The crucial point of this problem is to understand the possible ways of choosing any type of card from the 13-card deck.

This is a problem of combination since the order of choosing them does not matter here, that is, the important fact is the number of cards of type 1, 2, 3 or 4 we can get, no matter the order that they appear after choosing them.

So, the question for each type of card that we need to answer here is, how many ways are there of choosing 5 cards of type 1, 4 cards of type 2, 2 cards of type 3 and 2 are of type 4 from the deck of 13 cards?

The mathematical formula for combinations is $\\ \frac{n!}{(n-k)!k!}$ , where n is the total of elements available and k is the size of a selection of k elements from which we can choose from the total n.

Then,

Choosing 5 cards of type 1 from a 13-card deck:

$\frac{n!}{(n-k)!k!} = \frac{13!}{(13-5)!5!} = \frac{13*12*11*10*9*8!}{8!*5!} = \frac{13*12*11*10*9}{5*4*3*2*1} = 1,287$ , since $\\ \frac{8!}{8!} = 1$ .

Choosing 4 cards of type 2 from a 13-card deck:

$\\ \frac{n!}{(n-k)!k!} = \frac{13!}{(13-4)!4!} = \frac{13*12*11*10*9!}{9!4!} = \frac{13*12*11*10}{4!}= 715$ , since $\\ \frac{9!}{9!} = 1$ .

Choosing 2 cards of type 3 from a 13-card deck:

$\\ \frac{n!}{(n-k)!k!} =\frac{13!}{(13-2)!2!} = \frac{13*12*11!}{11!2!} = \frac{13*12}{2!} = 78$ , since $\\ \frac{11!}{11!}=1$ .

Choosing 2 cards of type 4 from a 13-card deck:

It is the same answer of the previous result, since

$\\ \frac{n!}{(n-k)!k!} = \frac{13!}{(13-2)!2!} = 78$ .

We still need to make use of the Multiplication Principle to get the final result, that is, the ways of having 5 cards of type 1, 4 cards of type 2, 2 cards of type 3 and 2 cards of type 4 is the multiplication of each case already obtained.

So, the answer about how many ways can we choose 13 cards so that there are 5 of type 1, there are 4 of type 2, there are 2 of type 3 and there are 2 of type 4 is:

1287 * 715 * 78 * 78 = 5,598,527,220 ways of doing that (or almost 6 thousand million ways).

In other words, there are 1287 ways of choosing 5 cards of type 1 from a set of 13 cards, 715 ways of choosing 4 cards of type 2 from a set of 13 cards and 78 ways of choosing 2 cards of type 3 and 2 cards of type 4, respectively, but having all these events at once is the multiplication of all them.

5 0

4 years ago

Which electronic community allows you to write a message and send it to several people at the same time?

Fynjy0 [20]

Email would be the answer youre looking for.Hope this helps!!

7 0

4 years ago

Read 2 more answers

A customer has a system with a Gigabyte B450 Aorus Pro motherboard. He wants to upgrade the processor from the AMD Athlon X4,950

Alenkinab [10]

Answer:

The upgrade is possible and will yield a significant increase in performance.

Explanation:

Computer systems comprises of software and hardware components. The software components of a computer are the instruction sets or programs used to control the hardware components. The hardware components are the physical parts of a computer.

The motherboard is a circuitry that connects all hardware components of the system. The CPU is the brain of the system. It must be compatible with the motherboard, else the motherboard and CPU will be damaged.

The AMD X4950 and AMD Ryzen 72700X processor are compatible with the the B450 Aorus Pro motherboard, and with the later CPU faster than the former, an upgrade increases performance.

7 0

3 years ago

Robin has four copies of her midterm paper saved to a single folder on her

Mumz [18]

Answer:

i think its b

Explanation:

im not sure but b seems reasonable. sorry if you get it incorrect :(

6 0

3 years ago

Soloha48 [4]

Yes the ansewer is c bc you can look it up!

4 0

3 years ago

Read 2 more answers

Describe how computer are used in ticket counter?​

Describe how computer are used in ticket counter?