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asambeis [7]
3 years ago
11

The computer mouse is used to

Computers and Technology
1 answer:
Bogdan [553]3 years ago
4 0
Move a virtual cursor on the screen of the computer.
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Which technique is used to convert a color image to a black and white image?
Andrew [12]
Microscope
bc thats the answer
4 0
3 years ago
What is network management?
melamori03 [73]
Network management is  a broad range of  functions including activities, methods, procedures and the  use of  tools to administrate,operate,and  reliably maintain computer network system.  <span />
3 0
3 years ago
Which of the following reflects Moore's law? Multiple Choice The doubling of computer chip performance per dollar every two year
Katena32 [7]

Answer:

The correct answer is A.

Explanation:

Moore's Law states/predicts that the maximum number of transistors that can be used on integrated circuits (processors etc.) will be doubled every two years so it basically predicts an exponential growth in terms of transistors used.

Doubling the number of transistors used means that it will almost certainly increase the performance of the processors. Of course there are a lot of other variables that the performance depends on but Moore's Law is proven to be true and  is being used since 1960's. The answer given in option A is the one that best reflects on this law.

I hope this answer helps.

4 0
3 years ago
Write an if statement that tests to see whether a String stored in a variable named phrase begins with a capital letter. If the
mamaluj [8]

Answer & Explanation:

//written in java

public class Main {

   public static void main(String[] args) {

       //String stored in a variable named phrase

       String phrase = "Brainly";

       //Checking whether the first character is in upper case or not

       if (Character.isUpperCase(phrase.charAt(0)))

           System.out.println("capital");

       else

           System.out.println("not capital");

   }

}

4 0
3 years ago
Give an example of a function from N to N that is: Hint: try using absolute value, floor, or ceiling for part (b). (a) one-to-on
Naily [24]

Answer:

Let f be a function  

a) f(n) = n²  

b) f(n) = n/2  

c) f(n) = 0  

Explanation:  

a) f(n) = n²  

This function is one-to-one function because the square of two different or distinct natural numbers cannot be equal.  

Let a and b are two elements both belong to N i.e. a ∈ N and b ∈ N. Then:

                               f(a) = f(b) ⇒ a² = b² ⇒ a = b  

The function f(n)= n² is not an onto function because not every natural number is a square of a natural number. This means that there is no other natural number that can be squared to result in that natural number.  For example 2 is a natural numbers but not a perfect square and also 24 is a natural number but not a perfect square.  

b) f(n) = n/2  

The above function example is an onto function because every natural number, let’s say n is a natural number that belongs to N, is the image of 2n. For example:

                               f(2n) = [2n/2] = n  

The above function is not one-to-one function because there are certain different natural numbers that have the same value or image. For example:  

When the value of n=1, then

                                  n/2 = [1/2] = [0.5] = 1  

When the value of n=2 then  

                                   n/2 = [2/2] = [1] = 1  

c) f(n) = 0

The above function is neither one-to-one nor onto. In order to depict that a function is not one-to-one there should be two elements in N having same image and the above example is not one to one because every integer has the same image.  The above function example is also not an onto function because every positive integer is not an image of any natural number.

5 0
3 years ago
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