Programming Challenges 947 4. Recursive Array Sum Write a function that accepts two arguments,, an array of integers, and a number indicating the number of elements in the array. The function should recursively calculate the sum of all the numbers in the array. Demonstrate the use of the function in a program that asks the user to enter an array of numbers and prints its sum. 5. Recursive Multiplication Write a recursive function that accepts two arguments into the parameters x and y. The function should return the value of x times y. Remember, multiplication can be performed as repeated addition: VideoNote Solving the Recursive Multiplication 7 * 4 = 4 + 4 + 4 + 4 + 4 + 4 + 4 Problem %3D 6. Recursive Member Test Write a recursive Boolean function named isMember. The function should accept three parameters: an array of integers, an integer indicating the number of elements in the array, and an integer value to be searched for. The function should return true if the value is found in the array or false if the value is not found. Demonstrate the use of the function in a program that asks the user to enter an array of numbers and a value to be searched for. 7. String Reverser Write a recursive function that accepts a string as its argument and prints the string in reverse order. Demonstrate the function in a driver program. 8. Palindrome Testing A palindrome is a string such as “madam", "radar", "dad", and “I", that reads the same forwards and backwards. The empty string is regarded as a palindrome. Write a

For questions 4 and 5, use the following order for the rows in your truth tables.P QT TT FF TF FP Q RT T TT T FT F TT F FF T TF T FF F TF F F4. (8 marks) Construct truth tables for the following statement forms.In your truth table, make sure that you include a column for each intermediate expression that you evaluate on your way to your final answer.(a) (P ↔ ¬Q) ∧ (P ↔ Q)(b) (¬P ∨ (¬Q ∨ ¬R)) ∨ (P ∧ Q)

Below are some rows of the PROVIDERS table for a factory: PCODE 10192 98411 0489035 NAME Hans, Inc. Tools and More Motors Inc. PHONE 231 - 3092 231-1029 993 - 1821 All providers from the factory zone of the city start with 231. You want to get the providers that are in the factory zone of the city. Which of the following is more appropriate? O a. O b. SELECT * FROM PROVIDERS WHERE PHONE LIKE '% 231' O C. O d. SELECT * FROM PROVIDERS WHERE PHONE LIKE $231%' SELECT * FROM PROVIDERS WHERE PHONE LIKE 231 SELECT * FROM PROVIDERS WHERE PHONE LIKE '%231%'

Using the Winners table from Figure 12-2, write a parameter query that selects only an actor’s Picture field.

List the names of all Staff members who hold a faculty position and have a salary of $45,000 or less. Show their names as their first name, followed by a space, and then their last name but sort the list alphabetically by last name and then first name. Hint: Check out the Position column in the Staff table. All staff members who do not hold a faculty position will get a bonus this year equal to 5% of their salary. List the names, current salary, and bonus amount for each Staff member (non-faculty) who is due a bonus. Show your list in order with the person receiving the highest bonus first.

12 of 40 Which statement is CORRECT about the results produced by the following SQL queries Q1 and Q2 over relation S(x,y,z)?. Q1: SELECT * FROM S WHERE x LIKE '%NULL%; Q2: SELECT * FROM S WHERE x LIKE %NULL' OR x LIKE 'NULL%'; Select one: O The result produced Q1 is always contained in the result produced by Q2. O Q1 and Q2 produce the same results. O Q1 and Q2 produce different results, in general. The result produced Q2 is always contained in the result produced by Q1.

Students: Johnson, Williams, Matt, Jones, Eric, Lili, John and Jason, whose grades are listed below. Each column is the grades each student received. There are 8 students with 10 grades each. Johnson: 79, 92, 85, 0, 100, 64, 72, 99, 90, 86 Williams: 80, 75 93, 94, 0, 90, 89, 88, 87, 86 Matt: 82, 67, 72, 74, 89, 0, 70, 89, 100, 76 Jones: 85, 84, 82.5, 82, 84, 80, 80.5, 90, 96, 85 Eric: 90, 91, 87, 85.5, 86.5, 0, 90, 90, 91, 92 Lili: 60, 75, 81, 70, 80, 81, 94, 67.5, 99, 98 John: 79,0, 74, 96, 88.5, 88, 0, 100, 86, 83 Jason: 89, 90, 90, 85, 85, 90, 91, 88, 100, 79 Write user-defined functions or build-in functions (e.g., sum, mean, max, min, etc.) to calculate: The Average Grade of each student; this average should be a vector. The average of the class; this average is a scalar vector. The highest grade among the Average Grade of Each Student The lowest grade among the Average Grade of Each Student Show a table with each student's name, average grade and letter score using A, B, C, D, F…

4. In the OrderItems table, display a count of the number of products, grouped by prod_id, but only for those groups having 3 or more of a given prod_id. Display the count with the alias shown. Sort by prod_id in ascending order. BNBG01 BNBG02 BNBG03 BR03 4 rows returned in 0.00 seconds PROD_ID Download 3 3 3 4 NUM_PROD_ID

For questions 10, 11, 12, in the options, there are no options in which c1=2 for ech of the questions, can you tell me correct options for 10 11 and 12?

Solve this (SQL)