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scoray [572]
3 years ago
13

Can you help me with this question please ​

Computers and Technology
1 answer:
Flura [38]3 years ago
3 0
D. half period because it is the converting of bidirectional current flow to unidirectional currency flow.
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A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter
trapecia [35]

Answer:

5 Letters

Explanation:

So we need 12 distinct codes made of a single letter or a pair of letters.

What would be the least number of letters?

Lets try with 3 letters A, B and C

The possible combinations are: A, B, C, AB, AC, BC

These are 6 codes and we need 12 so lets try more A, B, C and D

The possible combinations are: A, B, C, D, AB, AC, AD, BC, BD, CD

These are 10 codes and we need 12 so lets try more A, B, C, D and E

The possible combinations are:

A, B, C, D, E, AB, AC, AD, AE, BC, BD, BE, CD, CE, DE

Finally we got 15 distinct codes which are more than 12 so the least number of letters needed are 5.

Using formula:

Four letters = 4C1 + 4C2 = 4 + 6 = 10

Five letters = 5C1 + 5C2 = 5 + 10 = 15

5 0
2 years ago
How do I change the year I was born on this website? I made a mistake and now I can't fix it. Can somebody please help me?
Eddi Din [679]

Answer:

you can go to settings and try to fix it or contact the people of this website

Explanation:

8 0
3 years ago
The tcp/ip ____ layer commonly uses the transmission control protocol (tcp) to maintain an error-free end-to-end connection.
aleksklad [387]
The answer would be the TCP/IP Application Layer.
6 0
3 years ago
Assume that the population of Mexico is 128 million and that the population increases 1.01 percent annually. Assume that the pop
horrorfan [7]

Answer:

//Define class

public class Main {

 //define main method

 public static void main(String[] args)  

 {

   //declare and initialize the double type variable to 128

   double mexico = 128;

   //declare and initialize the double type variable to 323

   double us = 323;

   //declare and initialize the integer type variable to 0  

   int yr = 0;

   //set the while loop to check which is greater

   while (mexico < us)  

   {

     //increment in the variable by 1

     yr++;

     //initialize in the variables acc. to the percentage

     mexico *= 1.0101;

     us *= 0.9985;

   }

   //print the following results

   System.out.println("Population of the Mexico will be exceed the population U.S. in " + yr + " years");

   System.out.println("Population of the Mexico will be " + mexico + " million");

   System.out.println("and population of the U.S. will be " + us + " million");

 }

}

<u>Output</u>:

Population of the Mexico will be exceed the population U.S. in81 years

Population of the Mexico will be 288.88435953355025 million

and population of the U.S. will be 286.0198193927948 million

Explanation:

<u>Following are the description of the program</u>.

  • Firstly, we define the class 'Main' and inside it, we define the main method.
  • Then, declare two double data type variables which are 'mexico' and 'us' and initialize in it to 128 and 323.
  • Declare integer data type variable 'yr' and initialize in it to 0.
  • Set the while loop and pass the condition to check that the variable 'mexico' is less than the variable 'us' then, increment in the variable 'yr' by 1 and multiply the variables 'us' and 'mexico' by the following percentage.
  • Finally, print the following results with the message.
6 0
3 years ago
I need help right away pleas! 30 points.
Stolb23 [73]

Answer:

I'm very sorry if I'm wrong but I think it's A

8 0
2 years ago
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