Java
Math Tutor:
Write a program that displays a menu as shown in the sample run. You can enter 1, 2, 3, or 4 for choosing an addition, subtraction, multiplication, or division test. After a test is finished, the menu is redisplayed. You may choose another test or enter 5 to exit the system. Each test generates two random single-digit numbers to form a question for addition, subtraction, multiplication, or division. For a subtraction such as number1 – number2, number1 is greater than or equal to number2. For a division question such as number1 / number2, number2 is not zero.
Here is a sample run: (red indicates a user input)
Main menu 1:
Addition 2:
Subtraction 3:
Multiplication 4:
Division 5:
Exit Enter a choice: 1
What is 1 + 7? 8 Correct
Continue? (y/n) y
Enter a choice: 3
What is 2 * 3? 7
Your answer is wrong.
The correct answer is 6.
Continue? (y/n) n
Good bye!
In: Computer Science
The following table contains information on matched sample values whose differences are normally distributed.
Number 1 2 3 4 5 6 7 8
Sample 1- 17 12 21 23 19 13 19 17
Sample 2- 21 13 22 19 19 17 16 21
a. Construct the 95% confidence interval for the mean difference μ
In: Statistics and Probability
In: Accounting
Determine the magnitude of the seasonal ratio of the average quarter centered at that time period.
| Quarterly Sales ($1,000,000s) for Turner Industries | ||||
| Quarter | Year 1 | Year 2 | Year 3 | Average |
| 1 | 108 | 116 | 123 | 115.67 |
| 2 | 125 | 134 | 142 | 133.67 |
| 3 | 150 | 159 | 168 | 159 |
| 4 | 141 | 152 | 165 | 152.67 |
| Average | 131 | 140.25 | 149.5 | 140.25 |
In: Statistics and Probability
Solve for x using the quadratic formula. Be sure to check solution(s). 2x2-4x +1=0
Solve for x using the quadratic formula. Be sure to check solution(s). 3x2-2x+4=0
How many and what type of solutions will you have with 4x2-7x+11=0
2 Real solutions
2 complex solutions
1 real solution
In: Math
Write a C program that asks the user to enter 15 integer numbers and then store them in the array. Then, the program will find the second largest element in array and its index without sorting the array. For example, In this array {-55,-2,1, 2, -3, 0, 5, 9, 13, 1, 4, 3, 2, 1, 0}, the second largest element is 9 [found at index 7].
In: Computer Science
Question1: How many of the 5-digit numbers that can be
written with the numbers 1, 2, 3, 4 contain both numbers 1 and
2?
question2: 3 married couples shown as a1a2, b1b2, c1c2 want to sit
in a row. How many different ways can these married couples sit in
a row, without a husband and a wife from the same couple coming
together?
In: Statistics and Probability
Formal Languages
Give a regular expression for each of the following
languages:
L2a = {w ? {0,1}* | w corresponds to the binary encoding of
non-negative integers that are evenly divisible by 4
L2b = {w ? {a,b}* | w contains at least one 'a' and exactly two
b's}
L2c = {w ? {0, 1, 2}* | w starts with a 2, ends with a 1 and
contains an even number of 0's}.
In: Computer Science
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An ARM is made for $200,000 for 30 years with the following terms: |
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Initial interest rate = 3% |
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Index = 1-year Treasuries |
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Payments reset each year |
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Margin = 2 percent |
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Fully amortizing |
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Estimated forward rates: |
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| BOY 2 | 4.50% | |||||
| BOY 3 | 5.25% | |||||
| BOY 4 | 6% | |||||
| BOY 5 | 6.50% | |||||
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Compute payments and balances for each of the years 1-5. |
In: Finance
Chapter 1 and 2 "The Revolt of Engineers": Layton describes the approaches of the four founder societies of engineering professionals--ASCE, AIME, ASME, and AIEE. In 3-4 sentences, state which of these organizations would be most appealing to you to join based on its membership criteria, stances on professional behavior, and relationship to business, and why. In 1-2 sentences, state which would be least appealing and why?
In: Civil Engineering