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2 years ago

Convert the algebraic expression below to C++ statement Do not use the pow function. Ans = 5x^2 + 15k + y^-2

Computers and Technology

1 answer:

kramer2 years ago

7 0

Answer:

The C++ statement for the given algebraic expression 5x^2 + 15k + y^-2 is ( ( 5 * ( x * x ) ) + ( 15 * k ) + ( 1 / ( y * y ) ).

Explanation:

To convert the given algebraic expression 5x^2 + 15k + y^-2 into the C++ statement without using the pow function is:

In the given algebraic expression, there are three expressions combined using the + operator.

The first algebraic expression is 5x^2.

Here, x has a power of 2, and 5 is multiplied by the result of x^2. x having the power of 2 means x is multiplied itself twice. The C++ statement for this algebraic expression is (5 * ( x * x)).

The second algebraic expression is 15k.

Here, 15 is multiplied by k. The C++ statement for this algebraic expression is (15 * k).

The third algebraic expression is y^-2.

Here, x has a power of -2. it means $1/y^{2}$ . The C++ statement for this algebraic expression is (1/ (y * y).

The combination of all the three C++ statement is (5 * ( x * x)) + (15 * k) + (1/ (y * y).

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ella [17]

The print_shape() is an illustration of Python function; whose execution is carried out when the function is called

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2 years ago

Suppose that a disk drive has 5,000 cylinders, numbered 0 to 4,999. The drive is currently serving a request at cylinder 2,150,

Zina [86]

Answer:

The queue pending requests of FIFO order is ;

86, 1470, 1774, 948, 1509, 1022, 1750, 130.

Explanation:

The FCFS schedule is 143, 86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130.

Total seek distance is 7081.

The SSTF schedule is 143, 130, 86, 913, 948, 1022, 1470, 1509, 1750, 1774.

Total seek distance is 1745.

The LOOK schedule is 143, 913, 948, 1022, 1470, 1509, 1750, 1774, 130, 86.

Total seek distance is 3319.

The SCAN schedule is 143, 913, 948, 1022, 1470, 1509, 1750, 1774, 4999, 130, 86.

Total seek distance is 9769.

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3 years ago

At what minimum rate is a 60.0-kg boy using energy when, in 8.00 s, he runs up a flight of stairs that is 10.0-m high?

masha68 [24]

The answer is 735 W.

He runs up the stairs, so he needs a total amount of energy = mgh = 5880 Joules. For the rate: since he goes from zero energy to 5880 Joules over 8 seconds... Joules/sec = 5,880/8 = 735 W

5 0

3 years ago

Write a program to read a list of exam scores given as integer percentages in the range 0-100. Display the total number of grade

Tju [1.3M]

Answer:

import java.util.Scanner;

public class Program

{

public static void main(String [] Args)

{

int totalAGrades = 0, totalBGrades = 0, totalCGrades = 0, totalDGrades = 0, totalFGrades = 0, counter=0,maximum = 0, minimum = 9999, num, total = 0,smallest = 0,largest = 0;

Scanner in = new Scanner(System.in);

System.out.println("Enter exam percentage: ");

System.out.println("Enter a negative examScore: ");

int examScore = in.nextInt();

while(examScore > 0)

{

counter++;

if(examScore < 0){

break;}

else if(examScore > maximum){

maximum = examScore;}

else if(examScore < minimum) {

minimum = examScore;}

total = total + examScore;

if(examScore <= 50 && examScore>0)

smallest = examScore;

if(examScore > 90 && examScore <=100)

largest = examScore;

if(examScore>=90 && examScore<=100)

totalAGrades++;

else if(examScore>=80 && examScore<=89)

totalBGrades++;

else if(examScore>=70 && examScore<=79)

totalCGrades++;

else if(examScore>=60 && examScore<=69)

totalDGrades++;

else if(examScore>=0 && examScore<=59)

totalFGrades++;

examScore = in.nextInt();

}

System.out.println("Total number of scores is = " + counter );

System.out.println("Total Number of each Letter grade : " + counter);

System.out.println("Percentage of total for each letter grade : ");

System.out.println("Total number of A grades = "+ totalAGrades);

System.out.println("Total number of B grades = "+ totalBGrades);

System.out.println("Total number of C grades = "+ totalCGrades);

System.out.println("Total number of D grades = "+ totalDGrades);

System.out.println("Total number of F grades = "+ totalFGrades);

System.out.println("Lowest exam Score is :"+smallest);

System.out.println("Highest exam Score is :"+largest);

System.out.println("Average exam Score = "+ (total / counter));

}

Explanation:

Get the exam information from user as input and run a while loop until examScore is greater than zero.
Use conditional statement to check the scores of students and increment the relevant grade accordingly.
Finally display all the information including grades and scores.

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3 years ago

When naming a file you should use the ___ instead of a space in a filename

Ymorist [56]

The underscore.
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3 years ago