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Novay_Z [31]
3 years ago
13

Slide rule was the first mechanical calculator. true or false​

Computers and Technology
2 answers:
drek231 [11]3 years ago
7 0

Answer:

False. Pascal's calculator was the first mechanical calculator invented by Blaise Pascal in the mid 17th century.

Mashcka [7]3 years ago
3 0

Slide rule was the first mechanical calculator.

FALSE

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Is it possible to build something that doesn't exist yet?
Anastasy [175]

Answer:

yes

Explanation:

how do u think other thing were built like when phones were first made

5 0
3 years ago
If I execute the expression x <- 4L in R, what is the class of the object `x' as determined by the `class()' function?
FinnZ [79.3K]

Answer:

integer

Explanation:

The expression can be implemented as follows:

x <- 4L

class(x)

Here x is the object. When this expression is executed in R, the class "integer" of object 'x' is determined by the class() function. R objects for example x in this example have a class attribute determines the names of the classes from which the object inherits. The output of the above expression is:

"integer"

Here function class prints the vector of names of class i.e. integer that x inherits from. In order to declare an integer, L suffix is appended to it. Basically integer is a subset of numeric. If L suffix is not appended then x<-4 gives the output "numeric". Integers in R are identified by the suffix L while all other numbers are of class numeric independent of their value.

7 0
3 years ago
Write a Comparator that compares String objects by the number of words they contain. Consider any nonwhitespace string of charac
Readme [11.4K]

Answer:

import java.util.Scanner;

public class num12 {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Enter the first String");

       String word1 = in.nextLine();

       System.out.println("Enter the second String");

       String word2 = in.nextLine();

       System.out.println("Enter the third String");

       String word3 = in.nextLine();

       //Remove all white spaces

        String cword1 = word1.replace(" ","");

       String cword2 = word2.replace(" ","");

       String cword3 = word3.replace(" ","");

       //Comparing the string by their lengths

       if(cword1.length()>cword2.length()&&cword1.length()>cword3.length()){

           System.out.println(word1+" Is the longest");

       }

       else if(cword2.length()>cword1.length()&&cword2.length()>cword3.length()){

           System.out.println(word2+" Is the longest");

       }

       else{

           System.out.println(cword3+" Is the longest");

       }

   }

}

Explanation:

Using Java Programming Language

Use the Scanner Class to obtain the String values from the user

Save them in different variables

Use the replace() method in java to remove white space from any of the string entered

Using if and else statements compare the lengths of the strings (word.length()) returns the length of the word.

Print out the word that is longest

NOTE I have compared three Strings, comparing two would have been more straigth forward

8 0
4 years ago
Please could you help me
Nuetrik [128]

Answer:

is this a among us reference oooorr...... im confused. are u being frfr ...?

Explanation:

4 0
3 years ago
Read 2 more answers
Write a statement that calls the recursive method backwardsAlphabet() with parameter startingLetter.
lakkis [162]

Answer:

Following are the code to method calling

backwardsAlphabet(startingLetter); //calling method backwardsAlphabet

Output:

please find the attachment.

Explanation:

Working of program:

  • In the given java code, a class "RecursiveCalls" is declared, inside the class, a method that is "backwardsAlphabet" is defined, this method accepts a char parameter that is "currLetter".
  • In this method a conditional statement is used, if the block it will check input parameter value is 'a', then it will print value, otherwise, it will go to else section in this block it will use the recursive function that prints it's before value.
  • In the main method, first, we create the scanner class object then defined a char variable "startingLetter", in this we input from the user and pass its value into the method that is "backwardsAlphabet".

3 0
4 years ago
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