Write a program that determines the real roots of a quadratic equation. To calculate the roots of the equation the program calculates the discriminant D, given by: D = b - 4ac. If D>0, the program displays message "The equation has two roots," and the roots are displayed in the next line. If D = 0, the program displays message "The equation has one root," and the root is displayed in the next line. If D<0, the program displays message "The equation has no real roots." Run the program to obtain solutions to the following three equations: a) 2x + 8x +8 = 0 b) -5x + 3x – 4 = 0 c) -2x + 7x + 4 = 0 Script O 1 Don't change the variable names 2 %Part A 3 a = 2; b = 8; c = 8 4 xa = %Use variable 'xa' for one real root 5 xla = &Use variables 'xla' and 'x2a' for 2 distinct roots 6 x2a = 7 Part B 8 a = -5; b = 3; c = -4 9 xb = %Use variable 'xb' for one real root 10 x1b = %Use variables 'x1b' and 'x2b' for 2 distinct roots 11 x2b = 12 %Part C 13 a = -2; b = 7; c = 4 14 xc = %Use variable 'xc' for one real root 15 x1c = %Use variables 'x1c' and 'x2c' for 2 distinct roots 16 x2c =

Write a program that determines the real roots of a quadratic equation. To calculate the roots of the equation the program calculates the discriminant D, given by: D = b - 4ac. If D>0, the program displays message "The equation has two roots," and the roots are displayed in the next line. If D = 0, the program displays message "The equation has one root," and the root is displayed in the next line. If D<0, the program displays message "The equation has no real roots." Run the program to obtain solutions to the following three equations: a) 2x + 8x +8 = 0 b) -5x + 3x – 4 = 0 c) -2x + 7x + 4 = 0 Script O 1 Don't change the variable names 2 %Part A 3 a = 2; b = 8; c = 8 4 xa = %Use variable 'xa' for one real root 5 xla = &Use variables 'xla' and 'x2a' for 2 distinct roots 6 x2a = 7 Part B 8 a = -5; b = 3; c = -4 9 xb = %Use variable 'xb' for one real root 10 x1b = %Use variables 'x1b' and 'x2b' for 2 distinct roots 11 x2b = 12 %Part C 13 a = -2; b = 7; c = 4 14 xc = %Use variable 'xc' for one real root 15 x1c = %Use variables 'x1c' and 'x2c' for 2 distinct roots 16 x2c =

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter4: Making Decisions

Section: Chapter Questions

Problem 5E: a. Write a program named CheckMonth that prompts a user to enter a birth month. If the value entered...

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The cost of renting a room at a hotel is, say $100.00 per night. For special occasions, such as a wedding or conference, the hotel offers a special discount as follows: If the number of rooms booked at least 10, the discount is 10%; at least 20, the discount is 20%; and at least 30, the discount is 30%. Also if rooms are booked for at least three days, then there is an additional 5% discount. Write a program that prompts the user to enter the cost of renting one room, the number of rooms booked, the number of days the rooms are booked, and the sales tax (as a percent). The program outputs the cost of renting one room, the discount on each room as a percent, the number of rooms booked, the number of days the rooms are booked, the total cost of the rooms, the sales tax, and the total billing amount. Your program must use appropriate named constants to store special values such as various discounts.
a. Write a program named CheckMonth that prompts a user to enter a birth month. If the value entered is greater than 12 or less than 1, display an error message; otherwise, display the valid month with a message such as 3 is a valid month. b. Write a program named CheckM0nth2 that prompts a user to enter a birth month and day. Display an error message if the month is invalid (not I through 12) or the day is invalid for the month (for example, not between 1 and 31 for January or between I and 29 for February). If the month and day are valid, display them with a message.
The two roots of a quadratic equationax2 + bx + c = 0 can be obtained using the following formula:b2 - 4ac is called the discriminant of the quadratic equation. If it is positive, theequation has two real roots. If it is zero, the equation has one root. If it is negative,the equation has no real roots.Write a program that prompts the user to enter values for a, b, and c and displaysthe result based on the discriminant. If the discriminant is positive, display tworoots. If the discriminant is 0, display one root. Otherwise, display “The equationhas no real roots.”Note you can use Math.pow(x, 0.5) to compute √x. Here are some sampleruns: Enter a, b, c: 1.0 3 1 ↵EnterThe equation has two roots -0.381966 and -2.61803
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