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Aleonysh [2.5K]
3 years ago
7

Write a C++ Programm in which inheritance is used

Computers and Technology
1 answer:
geniusboy [140]3 years ago
8 0

Answer:

// C++ program to demonstrate inheritance

#include <iostream>

using namespace std;

// base class

class Animal {

  public:

   void eat() {

       cout << "I can eat!" << endl;

   }

   void sleep() {

       cout << "I can sleep!" << endl;

   }

};

// derived class

class Dog : public Animal {

  public:

   void bark() {

       cout << "I can bark! Woof woof!!" << endl;

   }

};

int main() {

   // Create object of the Dog class

   Dog dog1;

   // Calling members of the base class

   dog1.eat();

   dog1.sleep();

   // Calling member of the derived class

   dog1.bark();

   return 0;

}

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Minimized window

The sign to click is a "-" sign (minus)
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Citrus2011 [14]

Answer:

B - A word is correctly spelled but is used incorrectly in a document

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3 years ago
A datagram network allows routers to drop packets whenever they need to. The probability of a router discarding a packetis p. Co
tresset_1 [31]

Answer:

a.) k² - 3k + 3

b.) 1/(1 - k)²

c.) k^{2}  - 3k + 3 * \frac{1}{(1 - k)^{2} }\\\\= \frac{k^{2} - 3k + 3 }{(1-k)^{2} }

Explanation:

a.) A packet can make 1,2 or 3 hops

probability of 1 hop = k  ...(1)

probability of 2 hops = k(1-k)  ...(2)

probability of 3 hops = (1-k)²...(3)

Average number of probabilities = (1 x prob. of 1 hop) + (2 x prob. of 2 hops) + (3 x prob. of 3 hops)

                                                       = (1 × k) + (2 × k × (1 - k)) + (3 × (1-k)²)

                                                       = k + 2k - 2k² + 3(1 + k² - 2k)

∴mean number of hops                = k² - 3k + 3

b.) from (a) above, the mean number of hops when transmitting a packet is k² - 3k + 3

if k = 0 then number of hops is 3

if k = 1 then number of hops is (1 - 3 + 3) = 1

multiple transmissions can be needed if K is between 0 and 1

The probability of successful transmissions through the entire path is (1 - k)²

for one transmission, the probility of success is (1 - k)²

for two transmissions, the probility of success is 2(1 - k)²(1 - (1-k)²)

for three transmissions, the probility of success is 3(1 - k)²(1 - (1-k)²)² and so on

∴ for transmitting a single packet, it makes:

     ∞                             n-1

T = ∑ n(1 - k)²(1 - (1 - k)²)

    n-1

   = 1/(1 - k)²

c.) Mean number of required packet = ( mean number of hops when transmitting a packet × mean number of transmissions by a packet)

from (a) above, mean number of hops when transmitting a packet =  k² - 3k + 3

from (b) above, mean number of transmissions by a packet = 1/(1 - k)²

substituting: mean number of required packet =  k^{2}  - 3k + 3 * \frac{1}{(1 - k)^{2} }\\\\= \frac{k^{2} - 3k + 3 }{(1-k)^{2} }

6 0
3 years ago
In order to print multiple worksheets, what needs to happen before printing?
ryzh [129]

Answer:

Explanation:

Click the File tab.

Click Print, or press the control p keyboard command.

On the Print screen, select the printer and other settings.

Click Print.

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Use a web browser to find three examples of static webpages and three examples of dynamic webpages, and note the URLs for each p
shepuryov [24]

Answer:

Static web pages are sent as it is at web server without being processed additionally.

Dynamic web pages content may change, and server hosting dynamic web pages return content after processing trough a program.

Examples of dynamic and static web pages are below

Explanation:

<em><u>dynamic websites</u></em>

f o o t y r o o m  (.co) It is a football website. Displays latest highlights and football stats. It is dynamic because it gives live match scores, as the scores change, content change as well.

a c c u w e a t h e r (.com) It shows weather information. It is dynamic because when requested, displays current weather information.

x e (.com)   It is a currency website. Dynamic because it shows live exchange rates.

<em><u>static websites</u></em>

s c i p y - l e c t u r e s (.org) It is a website about scientific python environment. It is static because it gives same content whenever requested.

d o g a c a n d u . b l o g s p o t (.com) it is a blog. Static because the requested content doesn't change unless the blogger adds a new story.  

z t a b l e (.net) It is a website about z-score values and includes z-tables. It is static because its displayed as it is.

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