Matthias Corp. had the following foreign currency transactions during 2017: Purchased merchandise from a foreign supplier on January 20 for the U.S. dollar equivalent of $59,300 and paid the invoice on April 20 at the U.S. dollar equivalent of $51,200. On September 1, borrowed the U.S. dollar equivalent of $308,000 evidenced by a note that is payable in the lender's local currency in one year. On December 31, the U.S. dollar equivalent of the principal amount was $321,000. In Matthias's 2017 income statement, what amount should be included as a net foreign exchange gain or loss?

What is the pH change when adding 0.15 moles of HCl to a 1 L buffer containing 1.0 M acetic acid and 1 M sodium acetate?

A`) decreased by 0.13 units

B) increse by 0.13 Units

C) increase by 0.15 units

D) decrese by 0.15 Units

E) no change

UPDATE: Whole Code

How do I fix this Bold part "!= Null" ? its showing me Error? please Help

#include<iostream>
#include<string>
#include<string.h>
#include<fstream>
#include<stdlib.h>
#include<sstream>

using namespace std;

int main(){

string list[1000];
cout << "! Opening data file... ./Data.CS.SFSU.txt\n";
ifstream fin("Data.CS.SFSU.txt");
if(fin.fail()){
cout << "Error opening file\n";
return 0;
}
cout << "! Loading data...\n";
int count = 0;
while(getline(fin,list[count])!=NULL){
//cout << "--------------------\n";
count++;
}

cout << "! Loading completed...\n";
fin.close();
cout << "! Closing data file... ./Data.CS.SFSU1.txt\n";
cout << "-----DICTIONARY 340 C++-----\n";
while(true){
cout << "Search:";
string line;
getline(cin,line);
cout << "|" << endl;
stringstream ss(line);
  
string word1, word2, word3;
ss >> word1 >> word2;
if (ss >> word3 || (word2 != "noun" && word2 != "adjective" && word2 != "verb")){
cout << "Please enter a search key (and a part of speech)\n";
}
else {
for (int i = 0; i<word1.length(); i++){
word1[i] = tolower(word1[i]);
}
int found = 0;
cout << count << endl;
  
for (int i = 0; i< count; i++){
char line2[200];
strcpy(line2, list[i].c_str());
char *ch = strtok(line2,"|");
//cout << ch << endl;
while (ch != NULL){
//cout << ch << endl;
//cout << ch1 << " " << endl;
if (strcmp(ch,(char *)word1.c_str()) == 0){
ch = strtok(NULL,"|");

char line[100];
strcpy(line, ch);
char *ch1 = strtok(line," ");
//cout << line << endl;
if (strcmp(ch1,word2.c_str()) == 0){
ch1 = strtok(NULL," ");
ch1 = strtok(NULL," ");
string s ="";
while (ch1 != NULL){
s = s + ch1 + " ";
ch1 = strtok(NULL," ");
}
cout << word1 << "[" << word2 << "] :" << s << endl;
found = 1;
break;
}
}
ch = strtok(NULL,"|");
}
if (found == 1)
break;
}
if (found == 0)
cout << "Not found\n";
}
cout << "|" << endl;
  
}
return 0;
}

What is competition like in the printer/copier hardware industry? What is the competitive strength of buyers and suppliers? How strong are the threats of substitute products and new entrants to the industry? How strong is rivalry among competing firms? Explain.

Select “true” for those statements that are accurate and choose “false” for those that are not.

1. There is not a direct substitute for printing and copying or the subsequent maintenance activities. However, companies are moving toward cloud technology and digital documents.
   (Click to select)  True  False
   
2. The bargaining power of suppliers is low in this industry.
   (Click to select)  True  False
   
3. Component suppliers are unable to leapfrog over large printer/copier companies because of the high degree of skill required to manufacture these products.
   (Click to select)  True  False
   
4. Buyer bargaining power is low for this industry; buyers do not have the ability to negotiate the price of services/products.
   (Click to select)  True  False

1.

Which of the following describes the element Cs.
Choose all that apply.

a.consists of diatomic molecules in elemental form

b.is found in nature only combined with other elements

c.reacts vigorously with alkali metals to form salts

d. is very reactive as a metal

e.forms a basic solution in water

f. is one of the group of the least reactive elements

2. Using only the periodic table arrange the following elements in order of increasing atomic radius:

boron, fluorine, oxygen, lithium

3. Using only the periodic table arrange the following elements in order of increasing atomic radius:

nitrogen, antimony, arsenic, bismuth

Write a response post in your own words .

In light of the COVID-19 outbreak, I have chosen to focus on a Meaning-Focused Coping approach.  I have used this approach to focus on the learning that comes along with the pandemic, discovering why and how it happened, why it has affected so many and how it has spread, what is and could be done to combat it and I am also applying my current knowledge in public health to try to see all sides of it.  I have also used this time to realize what is really important in my life and have been able to do some self-growth as well which will help me come out stronger on the other side.

To me, resilience is based off of first and foremost the actions of one's self. The decisions that a person makes to deal with a situation make or break their resilience in the future. I have chosen to provide resilience for myself during this time by focusing on staying calm, following the realistic and scientific information without drawing false conclusions, making a new plan for how I will finish the semester strong online remembering to practice self-care while at home.

One specific action that I am taking to prevent the spread of COVID-19 in my community is that I am taking the 14 day home quarantine seriously, since I traveled outside of Alaska for the first week of Spring Break, I have stayed at home and have not come in contact with anyone else. This is very important to be able to flatten the curve of people being infected everyday.

A 1.458-g sample of a solid, weak, monoprotic acid is used to make 100.0 mL of solution. 40.0 mL of this solution was titrated with 0.07942-M NaOH. The pH after the addition of 16.55 mL of base was 2.94, and the equivalence point was reached with the addition of 46.63 mL of base.

a) How many millimoles of acid are in the original solid sample? Hint: Don't forget the dilution.

b) What is the molar mass of the acid?

c) What is the pK_a of the acid?

"Discuss whether free market is necessarily efficient. Give some examples to illustrate the
limitations of government interventions in restoring the market efficiency. Some economists advocate market-based solutions, discuss its merits over command-and-control policies."
Please give 3~4 practical examples with your own word and apply micro-economic theories and concepts to these examples.

A study was perform in the Albuquerque, New Mexico metropolitan area to evaluate the diagnostic accuracy of Prostate Specific Antigen (PSA) testing as a screening tool for detecting prostate cancer in community practice. Subjects were 2,620 men 40 years and older undergoing (PSA) testing and prostate biopsy. A total of 1,932 men tested positive with the initial PSA testing and among them cancer was detected in 800 subjects with a subsequent prostate biopsy. In addition, 130 cases of prostate cancer were detected among men who screened negative with the initial PSA test.

a) Using the information above, create a 2x2 table to assess the accuracy of the test.

b) Calculate and interpret the sensitivity of the PSA test.

c) What will be the specificity of this screening test? Calculate and interpret.

d) Calculate and interpret the predictive value positive of the PSA test.

e) Calculate and interpret the predictive value negative of the PSA test

QUESTION 1

"Select and Teach Functional Target Behaviors" is a specific strategy to promote generalization and maintenance. In this strategy, it is important to select replacement skills and behaviors with strong functional utility. The selected skills and behaviors should

5 points   

QUESTION 2

A prevention strategy can involve how instructions are presented to students. Which is the best example of the correct use of this strategy?

5 points   

QUESTION 3

A prevention strategy can involve how transitions and leisure times are managed for students. Which is the best example of the correct use of this strategy?

6 points   

QUESTION 4

Maintenance is achieved when the student:

(1) A 190-kg object and a 490-kg object are separated by 4.40 m.

(a) Find the magnitude of the net gravitational force exerted by these objects on a 63.0-kg object placed midway between them. [N]

(b) At what position (other than an infinitely remote one) can the 63.0-kg object be placed so as to experience a net force of zero from the other two objects? [m from the 490 kg mass toward the 190 kg mass ]

(2)

(a) What is the minimum speed, relative to the Sun, necessary for a spacecraft to escape the solar system if it starts at the Earth's orbit? [km/s]

(b) Voyager 1 achieved a maximum speed of 125,000 km/h on its way to photograph Jupiter. Beyond what distance from the Sun is this speed sufficient to escape the solar system? [m]

I really need help with these 2 questions! Just need a final answer, little explanation required but please include the numerical work so I can understand and also please follow the units in the [brackets]

Explain the rate-determining step, as discussed in General or Organic Chemistry