need help on my pre exam After execution of the following code, what will be the

ID: 3863153 • Letter: N

Question

need help on my pre exam

After execution of the following code, what will be the value of input_value if the value 0 is entered at the keyboard at run time?

cin >> input_value;

if (input_value > 5)

input_value = input_value + 5;

else if (input_value > 2)

input_value = input_value + 10;

else

input_value = input_value + 15;

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Question 2 3 pts

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0 multiple_choice_question 133143

What will following segment of code output? int x = 5; if (x = 2) cout << "This is true!" << endl; else cout << "This is false!" << endl; cout << "This is all folks!" << endl;

What will following segment of code output?

int x = 5;
if (x = 2)

cout << "This is true!" << endl;

else

cout << "This is false!" << endl;

cout << "This is all folks!" << endl;

This is true!

This is false!

This is true!

This is all folks!

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Question 3 3 pts

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0 multiple_choice_question 133144

<div class="WordSection1"> What would be the output for the following code if the value input for plan is 4? </div> int main(void) { int plan = 0, cost; cin >> plan; switch (plan) { case 2: case 3: cost = 100; case 4: cost = 250; break; default: cost = 50; } cout << cost << endl; return 0; }

What would be the output for the following code if the value input for plan is 4?

int main(void)
{
 int plan = 0, cost;
 cin >> plan;

 switch (plan)
 {
 case 2:
 case 3:
 cost = 100;
 case 4:
 cost = 250;
 break;
 default:
 cost = 50;
 }
 cout << cost << endl;
 return 0;
}

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Question 4 3 pts

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0 multiple_choice_question 133145

<div class="WordSection1"> What would be the output for the following code if the value input for plan is 2? </div> int main(void) { int plan = 0, cost; cin >> plan; switch (plan) { case 2: case 3: cost = 100; case 4: cost = 250; break; default: cost = 50; } cout << cost << endl; return 0; }

What would be the output for the following code if the value input for plan is 2?

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Question 5 3 pts

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0 multiple_choice_question 133151

What is the output? int main(void) { int fun = 13; int time = 3; int result; result = fun++ * ++time; cout << fun << "***" << time << "***" << result << endl; return 0; }

What is the output?

int main(void)
{
 int fun = 13; int time = 3; int result;

 result = fun++ * ++time;
 cout << fun << "***" << time << "***" << result << endl;
 return 0;
}

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Question 6 3 pts

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0 multiple_choice_question 133152

How many times would the following loop be executed? int i = 12; while (i > 0) { cout << 2 * i << endl; i += 2; }

How many times would the following loop be executed?
 int i = 12;
 while (i > 0)
 {
 cout << 2 * i << endl;
 i += 2;
 }

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Question 7 3 pts

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0 multiple_choice_question 133153

while( n <= 5){ cout << n << " "; n++; }

while( n <= 5){
cout << n << " ";
n++;
}

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Question 8 3 pts

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0 multiple_choice_question 133154

How many times would the following loop be executed? int i = 3; do { cout << 2 * i << endl; i += 3; }while (i < 10);

How many times would the following loop be executed?
 int i = 3;
 do
 {
 cout << 2 * i << endl;
 i += 3;
 }while (i < 10);

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Question 9 3 pts

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0 multiple_choice_question 133156

Here is the prototype for a function named computeValue: void computeValue(int); Which of the following is a correct call (invoke) to this function?

Here is the prototype for a function named computeValue:

void computeValue(int);

Which of the following is a correct call (invoke) to this function?

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Question 10 3 pts

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0 multiple_choice_question 133157

What is the output from the following piece of code? #include <iostream> using namespace std; void copy (int& a, int& b, int& c); int main () { int x = 5, y = 3, z = 7; copy (x, y, z); cout << x << " & " << y << " & " << z; return 0; } void copy (int& a, int& b, int& c) { a *= 2; b *= 2; c *= 2; }

What is the output from the following piece of code?

#include <iostream>
using namespace std;
void copy (int& a, int& b, int& c);

int main ()
{
int x = 5, y = 3, z = 7;
copy (x, y, z);
cout << x << " & " << y << " & " << z;
return 0;
}
void copy (int& a, int& b, int& c)
{
a *= 2;
b *= 2;
c *= 2;
}

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Question 11 3 pts

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0 multiple_choice_question 133158

What is the output from the following piece of code? #include <iostream> using namespace std; void copy (int& a, int b, int& c); int main () { int x = 5, y = 3, z = 7; copy (x, y, z); cout << x << " & " << y << " & " << z; return 0; } void copy (int& a, int b, int& c) { a *= 2; b *= 2; c *= 2; }

What is the output from the following piece of code?

#include <iostream>
using namespace std;
void copy (int& a, int b, int& c);

int main ()
{
int x = 5, y = 3, z = 7;
copy (x, y, z);
cout << x << " & " << y << " & " << z;
return 0;
}
void copy (int& a, int b, int& c)
{
a *= 2;
b *= 2;
c *= 2;
}

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Question 12 3 pts

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0 multiple_choice_question 133159

A function can have zero to many parameters, and it can return this many values:

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Question 13 3 pts

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0 multiple_choice_question 133160

This statement causes the execution of a function to cease.

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Question 14 3 pts

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0 multiple_choice_question 133161

When used as parameters, these types of variables allow a function to access the parameter's original argument (i.e. memory location).

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Question 15 2 pts

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0 true_false_question 133146

. Given int a = 3; int b = 11; Is the following expression true or false? a > b

. Given
int a = 3; int b = 11;

Is the following expression true or false?
a > b

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Question 16 2 pts

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0 true_false_question 133147

. Given int a = 3; int b = 11; Is the following expression true or false? a > 0 || a > b

. Given
int a = 3; int b = 11;

Is the following expression true or false?
a > 0 || a > b

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Question 17 2 pts

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0 true_false_question 133148

. Given int a = 3; int b = 11; Is the following expression true or false? a > 0 && a > b

. Given
int a = 3; int b = 11;

Is the following expression true or false?
a > 0 && a > b

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Question 18 2 pts

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0 true_false_question 133149

. Given int a = 3; int b = 11; Is the following expression true or false? !(a > 10)

. Given
int a = 3; int b = 11;

Is the following expression true or false?
!(a > 10)

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Question 19 2 pts

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0 true_false_question 133150

. Given int a = 3; int b = 11; Is the following expression true or false? a == 3

. Given
int a = 3; int b = 11;

Is the following expression true or false?
a == 3

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Question 20 5 pts

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0 essay_question 133163

Write the output: int i, j; for (i = 1; i <=2; i++) { for( j = 0; j < 2; j++) cout << "slow,"; for( j = 0; j < 2; j++) cout << "quick,"; cout << endl; }

Write the output:

int i, j;
 for (i = 1; i <=2; i++)
 {
 for( j = 0; j < 2; j++)
 cout << "slow,";
 for( j = 0; j < 2; j++)
 cout << "quick,";
 cout << endl;
 }

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Question 21 5 pts

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0 essay_question 133155

Rewrite the following for loop as a while loop. The while loop must output what the for statement does and no more. Assume int i; int num; for (i = 1; i <= num; i++) { if(num % i == 0) cout < }

Rewrite the following for loop as a while loop. The while loop must output what the for statement does and no more. Assume int i; int num;

for (i = 1; i <= num; i++)
{
if(num % i == 0)
cout << i << endl;
}

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Question 22 18 pts

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0 essay_question 133164

Using the Metabolic Equivalent of Task value for a given activity, the number of calories burned per hour can be calculated. The formula is a person’s weight in pounds divided by 2.2 and multiplied by the MET value for the given activity. Write a program to input the MET value and out put the number of calories burned per hour for a person for each pound between 120 and 190 inclusive. The sample output is for the cycling MET which is 8.0. Write main() and no other functions. Output formatted as shown (actual width of columns not important as long as the decimal points are lined up and there is one point to right of decimal point for real numbers. <pre>Enter MET for activity: 8.0 Weight Calories burned 120 436.4 121 440.0 122 443.6 123 447.3 124 450.9 125 454.5 126 458.2 127 461.8 . . . 186 676.4 187 680.0 188 683.6 189 687.3 190 690.9 Press any key to continue </pre>

Using the Metabolic Equivalent of Task value for a given activity, the number of calories burned per hour can be calculated. The formula is a person’s weight in pounds divided by 2.2 and multiplied by the MET value for the given activity. Write a program to input the MET value and out put the number of calories burned per hour for a person for each pound between 120 and 190 inclusive. The sample output is for the cycling MET which is 8.0.

Write main() and no other functions. Output formatted as shown (actual width of columns not important as long as the decimal points are lined up and there is one point to right of decimal point for real numbers.

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Question 23 20 pts

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0 essay_question 133162

If you get a ticket for speeding, your fine is based on how much your speed exceeded the speed limit by. Suppose the fine is based on the following schedule: Amount over limit: Fine Greater than 0 but less than or equal to 10 $ 80 Greater than 10 but less than or equal to 20 $250 Greater than 20 $500 Complete the program below to input the legal speed limit and the speed the driver was driving at. Compute and output the fine. Complete getData to input the legal speed and driver’s speed. Complete calcFine to calculate the fine. Add the prototypes (i.e. function declarations). Do not change any code already written in main(). (20 points possible. #include <iostream> #include <iomanip> using namespace std; //Function declarations ______________________________________________________ ______________________________________________________ int main (void) { double speedLimit, driverSpeed, fine; //call function to input data getData(speedLimit, driverSpeed); //Call function to calculate the fine fine = calcFine(speedLimit, driverSpeed); cout << setprecision(2) << fixed; cout << "Your fine is: $ " << fine << endl; return 0; }//main //*******************Define functions*******************

If you get a ticket for speeding, your fine is based on how much your speed exceeded the speed limit by. Suppose the fine is based on the following schedule:
 Amount over limit: Fine
Greater than 0 but less than or equal to 10 $ 80
Greater than 10 but less than or equal to 20 $250
Greater than 20 $500
Complete the program below to input the legal speed limit and the speed the driver was driving at. Compute and output the fine. Complete getData to input the legal speed and driver’s speed. Complete calcFine to calculate the fine. Add the prototypes (i.e. function declarations). Do not change any code already written in main(). (20 points possible.

#include <iostream>
#include <iomanip>
using namespace std;

//Function declarations

______________________________________________________

______________________________________________________
int main (void)
{
 double speedLimit, driverSpeed, fine;

 //call function to input data
 getData(speedLimit, driverSpeed);

 //Call function to calculate the fine
 fine = calcFine(speedLimit, driverSpeed);
 cout << setprecision(2) << fixed;
 cout << "Your fine is: $ " << fine << endl;
 return 0;
}//main
//*******************Define functions*******************

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Time's Up! Submitting results in:

Ok, fine

Explanation / Answer

1. it will be 15.

This is because 0 is less than both 2 and 5 so these statements wont be run.The execution will move to the else part which will add 15 to the current value of input_value(=0).

2.it will be

This is true!

This is all folks!

this is because in the if statement assignment operator(=) is used instead of equal to (==).Hence the line x=2 means value of 2 is assigned to x, which is always true.There fore the if part of the code will be executed printing "This is true!".The else part will be skipped and the code after else part will be executed, which will print "This is all folks!".(If no curly brackets are used after a loop or if else , the immediate one line after the loop declaration or the if else condition is taken as part of loop/if-else).

3. it will display 250.

the switch case matches the switch value(plan here) with the different cases provided and executes the code defined under the matched case.Here, plan = 4 which matches the switch case for 4 and its code is executed, assigning value 250 to cost.After the switch case ends, the cout line is executed printing the value of cost(i.e. 250) on the screen.

4.the answer will be 250.

this is because when case is input 2, the code for case two will be executed.there is no code assigned under case 2 so no changes will be made.However since no break statement is used the execution moves automatically to case 3 which will assign cost the value of 100.Again no break statement is used so the execution moves to case 4 which now assigns a value 250 to cost.Here break statement is used so the execustion wont pass any further and will move out of switch , executing cout line and printing value of cost which is 250.

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