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3 years ago

Given the following function definition:

Computers and Technology

1 answer:

neonofarm [45]3 years ago

4 0

The question is incomplete! Complete question along with its step by step answer is provided below!

Question:

Given the following function definition:

void calc (int a, int& b)

{

int c;

c = a + 2;

a = a * 3;

b = c + a;

}

x = 1;

y = 2;

z = 3;

calc(x, y);

cout << x << " " << y << " " << z << endl;

What is the output of the following code fragment that invokes calc?

a. 1 2 3

b. 1 6 3

c. 3 6 3

d. 1 14 9

e. None of these

Answer:

b. 1 6 3

Explanation:

In the given problem we have a function void calc which takes two input arguments a and b and updates its values according to following equations

c = a + 2;

a = a * 3;

b = c + a;

Then we call this function calc(x,y) by providing test values of

int x = 1;

int y = 2;

int z = 3;

and the output returns the values of x, y and z

cout << x << " " << y << " " << z << endl;

Lets find out what is happening here!

When the program runs we provide x=a=1 and y=b=2

c=a+2=1+2=3

a=a*3=1*3=3

b=c+a=3+3=6

So the updated values of a=x=3 and b=y=6?

NO!

The updated values are a=x=1 and b=y=6

WHY?

There are two ways to pass values

1. Pass by values -> value cannot change (int a)

2. Pass by reference -> value can change (int& b)

Look at the function void calc (int a, int& b) ;

Here we are passing (int a) as a value and (int& b) as a reference, therefore x remains same x=1 and y gets changed to updated value y=6 and z remains same as z=3 since it wasnt used by function calc(x,y)

The right answer is:

b. 1 6 3

x=1, y=6, z=3

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In Java.Use a single for loop to output odd numbers, even numbers, and an arithmetic function of an odd and even number. Use the

rosijanka [135]

Answer:

This program is written using java programming language

Difficult lines are explained using comments (See Attachment for Source file)

Program starts here

import java.util.*;

import java.lang.Math;

public class oddeven{

public static void main(String [] args)

{

double even,odd;//Declare variables even and odd as double

//The next iteration prints odd numbers

for(int i = 1;i<=173;i+=2)

{

odd = i;

System.out.format("%.4f",odd);//Round to 4 decimal places and print

System.out.print("\t");

}

System.out.print('\n');//Start printing on a new line

//The next iteration prints even numbers

for(int i = 0;i<=173;i+=2)

{

even=i;

System.out.format("%.4f",even);//Round to 4 decimal places and print

System.out.print("\t");

}

System.out.print('\n');//Start printing on a new line

double ssqrt;//Declare ssqrt to calculate the square root of sum of even and odd numbers

for(int i = 0;i<=173;i+=2)

{

ssqrt = Math.sqrt(2*i+1);//Calculate square root here

System.out.format("%.4f",ssqrt); //Round to 4 decimal places and print

System.out.print("\t");

}

Explanation:

Libraries are imported into the program

import java.util.*;

import java.lang.Math;

The following line declares variables even and odd as double

double even,odd;

The following iteration is used to print odd numbers with in the range of 0 to 173

for(int i = 1;i<=173;i+=2) {

odd = i;

System.out.format("%.4f",odd); This particular line rounds up each odd numbers to 4 decimal places before printing them

System.out.print("\t"); This line prints a tab

}

The following code is used to start printing on a new line

System.out.print('\n');

The following iteration is used to print even numbers with in the range of 0 to 173

for(int i = 0;i<=173;i+=2)

{

even=i;

System.out.format("%.4f",even); This particular line rounds up each even numbers to 4 decimal places before printing them

System.out.print("\t"); This line prints a tab

}

The following code is used to start printing on a new line

System.out.print('\n');

The next statement declares ssqrt as double to calculate the square root of the sum of even and odd numbers

double ssqrt;

for(int i = 0;i<=173;i+=2)

{

ssqrt = Math.sqrt(2*i+1);This line calculates the square root of sum of even and odd numbers

System.out.format("%.4f",ssqrt); This particular line rounds up each even numbers to 4 decimal places before printing them

System.out.print("\t"); This line prints a tab

}

Download java

7 0

3 years ago

Define a function below, posodd_number_filter, which takes a single numerical argument. Complete the function to return accepted

Vaselesa [24]

The program is an illustration of functions.

<h3>What are functions?</h3>

Functions are set of program statements that are executed when called or evoked.

<h3>The main program</h3>

The function written in Python, where comments are used to explain each line of the program is as follows:

#This defines the function

def posodd_number_filter(num):

#This checks if the function is odd and positive

if num >0 and num%2 ==1:

#If yes, this returns Accepted

return "Accepted"

#If no, this returns Rejected

return "Rejected"

Read more about functions at:

brainly.com/question/14284563

5 0

3 years ago

PLTW IM Chapter 1.2-1.3 i need this please

Luden [163]

Answer:

Biomedical Science

The application of the principles of the natural sciences, especially biology and physiology to clinical medicine

Control group

The group in an experiment where the independent variable being tested is not applied so that it may serve as a standard for comparison against the experimental group where the independent variable is applied.

Dependent Variable

The measurable affect, outcome, or response in which the research is interested.

Experiment

A research study conducted to determine the effect that one variable has upon another variable

Forensic Science

The application of scientific knowledge to questions of civil and criminal law

Hypothesis

Clear prediction of anticipated results of an experiment

Independent Variable

The variable that is varied or manipulated by the researcher

Negative control

Control group where the conditions produce a negative outcome. Negative control groups help identify outside influences which may be present that were not accounted for when the procedure was created

Personal protective equipment

Specialized clothing or equipment, worn by an employee for protection against infectious materials.(as defined by OSHA)

Positive control

Group expected to have a positive result, allowing the researcher to show that the experiment set up was capable of producing results.

Adenine

A component of nucleic acids, energy carrying molecule such as ATP, and certain co enzymes. Chemically it is a purine base.

Chromosome

Any of the usually linear bodies in the nucleus that contain genetic material.

Cytosine

A component of nucleic acids that carries hereditary information in DNA and RNA in cells . Chemically it is a pyrimidine base.

Deoroxyribonucleic acid

A double-stranded helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell proteins

Gel electrophoresis

The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring their movement through an electrical field in a gel.

Gene

A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA.( or RNA in some viruses).

Guanine

A component of nucleic acids that carries hereditary information in DNA and RNA in cells. Chemically it is a purine base.

Helix

Something in spiral form.

Model

A simplified version of something complex used, for example, to analyze and solve problems or make predictions.

Nucleotide

A building block of DNA, consisting of a 5 carbon sugar convalently bonded to a nitrogenous base and a phosphate group.

Restriction enzymes

A degradative enzyme that recognizes specific nucleotide sequences and cuts up DNA

Restriction fragment length polyphorisms (RFLPs)

Differences in DNA sequences on homologous chromosomes that can result in different patterns of restriction fragment lengths (DNA segments resulting from treatment with restriction enzymes)

Thymine

A component of nucleic acid that carries hereditary information in DNA cells. Chemically, it is a pyrimidine base

Autopsy

An examination of the body after death usually with such dissections as will expose the vital organs for determining the cause of death

Bibliography

a document showing all the sources used to research information

Citation

A written reference to a specific work by a particular author or creator which identifies the document in which the work may be found

Documentation

The act of creating citations to identify resources used in writing a work

Health Insurance Portability and Accountability Act (HIPAA)

A comprehensive set of standards and practices designed to give patients specific rights regarding their personal health information

Medical examiner

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Explanation:

This is what I found when I searched up pltw chapter 1.2-1.3 answers.

I did this because there was not really a question in there.

PS:

I'm sorry if this is too long for you to read.

Give me brainliest, if you want to, that is.

7 0

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andriy [413]

Answer:

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Explanation:

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