Question

For 1 through 11, create an expression using the relational operators, the logical operators, and variable names of your own choosing, no if or variable declaration is necessary.

1. is a person's age equal to 30?

2. is a body temperature greater than 98.6?

3. is a person's height less than 6 feet?

4. is the current month 12?

5. check if the letter input is m

6. is a person's age equal to 30 and is the person taller than 6 feet?

7. check if a length is greater than 2 feet and less than 3 feet

8. taxRate is over 25% and income is less than $20000

9. temperature is less than or equal to 75 or humidity is less than 70%

10. age is over 21 and age is less than 60

11. age is 21 or 22

12. For what value(s) of x would this condition be true?

        (x < 1) && (x > 10)

13. For what value(s) of y would this condition be true?

        (y >= 1) && (y <= 10)

Write appropriate if statements for each of the following conditions:

14. If an angle is equal to 90 degrees, print the message "The angle is a right angle" else print the message "the angle is not a right angle."

15. If the temperature is above 100 degrees (celsius), display the message "above the boiling point of water," else display the message "below the boiling point of water."

16. If the number is positive, add the number to a variable called posSum, otherwise add the number to negSum.

17. If the slope is less than .5, set a variable named flag to zero, else set flag to one.

18. Write a program to input an integer number. The program should then output the number and a message saying whether the number is positive, negative, or zero.

19. Write a program to input three numbers and print out the largest number.

20. Write the statements to input a water temperature (in Fahrenheit) and print out the state of the water � freezing, boiling, liquid

Write the code and trace for the following:

1. Design an algorithm that will receive two integers items and display to the screen their sum, difference, product, and quotient. Do not allow divide by zero to occur.

2. Design an algorithm that will read two numbers and an integer code from the screen (print a menu of the choices first). If the code is 1, compute the sum of the two numbers. If the code is 2, compute the difference of the first number minus the second. If the code is 3, compute the product. If the code is 4 and the second number is not 0, compute the quotient (divide the first number by the second). If the code is not 1,2,3, or 4, display an error message. Finally, display the two numbers, the code, and the result (echo the input).

Answer 1

1. (age==30)
2. (temperature>98.6)
3. (height<6)
4. (month==12)
5. (input==m)
6. (age==30 && height>6)
7. (lenght>2 && lenght<3)
8. (taxRate>25 && income<20000)
9.(temperature<=75 || humidity<70)
10.(age>21 && age<60)
11.(age==21 || age==22)
12. condition never be true
13. 1,2,3,4,5,6,7,8,9,10
14. if(angle==90)
   printf("The angle is a right angle");
else
   printf("The angle is not a right angle");
15. if(temperature>100)
   printf("above the boiling point of water");
else
   printf("below boiling point");
16.if(number>0)
   posSum=posSum+number;
else
   negSum=negSum+number;
17. if(slope<5)
   flag=0;
else   
   flag=1;
18. //Program is in C
   #include<stdio.h>
   int main()
   {
       int number;
       printf("Enter a number");
       scanf("%d",&number);
       if(number>0)
           printf("positive");
       else if(number<0)
           printf("negative");
       else if(number==0)
           printf("zero");
       else
           printf("Enter a valid number");
          
   }
19. //Program is in C
   #include<stdio.h>
   int main()
   {
       int a,b,c;
       printf("Enter a number 1 :");
       scanf("%d",&a);
       printf("Enter a number 2 :");
       scanf("%d",&b);
       printf("Enter a number 3 :");
       scanf("%d",&c);
       if(a>b && a>c)
           printf("%d is max",a);
       else if(b>a && b>c)
           printf("%d is max",b);
       else if(c>a && c>b)
           printf("%d is max",c);
       else
           printf("all are equal");
          
   }
20. //Program is in C
   #include<stdio.h>
   int main()
   {
       float temperature;
       printf("Enter temperature");
       scanf("%f",&temperature);
       if(temperature==0)
           printf("freezing point");
       else if(temperature==100)
           printf("boiling point");
       else if(temperature>=0 && temperature<100)
           printf("liquid");
       else
           printf("enter valid");  
   }

Algorithms and Codes;
1)

   1. Start
   2. Enter value of the variable a
   3. Enter value of the variable b
   4. Calculate p (p = a + b)
   5. Display result of addition, value of p on the monitor with the message "The sum of a and b is:"
   6. Calculate q (q = a - b)
   7.Display result of subtraction, value of q on the monitor with the message "The difference of a and b is:"
   8.Calculate r (r = a*b)
   9.Display result of multiplication, value of r on the monitor with the message "The multiplication of a and b is:"
   10.if b not equal to zero,go to step 11,otherwise go to step 13.
   11.Calculate s (s = a/b)
   12.Display result of division, value of s on the monitor with the message "The multiplication of a and b is:"
   13. tell the user division not possible with zero .
   14.End

//C code

#include<stdio.h>
int main()
{
int a,b,p,q,r;
int s;
printf("Enter number 1:");
scanf("%d",&a);
printf("Enter number 2:");
scanf("%d",&b);
p=a+b;
printf("\nAddition is %d",p);
q=a-b;
printf("\nsubtraction is %d",p);
r=a*b;
printf("\nmultiplication is %d",p);
if(b!=0){
s=a/b;
printf("\ndivision is %d",s);
}
else
printf("\ndivision not possible with zero");
}

2)
  
   1. Start
   2. Enter value of the variable a
   3. Enter value of the variable b
   4.Display operations   
       1.addition
       2.difference
       3.Multiplication
       4.Division
   5.Enter operation number
   6.if operation number is 1,goto 7
   7. Calculate result (result = a + b)
   8.if operation number is 2,goto 9
   9. Calculate result (result = a - b)
   10.if operation number is 3,goto 11
   11.Calculate result (result = a*b)
   12.if operation number is 4,goto 13
   13.if b not equal to zero,go to step 14,otherwise go to step 15.
   14.Calculate result (result = a/b)
   15. tell the user division not possible with zero
   16.Display a,b,result.
   17.End
      

c code :

#include<stdio.h>
int main()
{
int a,b,result,op;
printf("Enter number 1:");
scanf("%d",&a);
printf("Enter number 2:");
scanf("%d",&b);
printf("\nChoose operation :");
printf("\n\t1.Addition");
printf("\n\t2.difference");
printf("\n\t3.multiply");
printf("\n\t4.division");
printf("\n\tenter operation");
scanf("%d",&op);
switch(op)
{
case 1:
result=a+b;
break;
case 2:
result=a-b;
break;
case 3:
result=a*b;
break;
case 4:
{
if(b!=0)
result=a/b;
  
else
printf("\ndivison not possible with zero");
}
break;
}
printf("\nNumber1 is %d",a);
printf("\nNumber2 is %d",b);
printf("\noperation is %d",op);
printf("\nresult is %d",result);
}