Which of the following code declares the data type “43”? A. Int B. Float C. String D. Bool

please quickly thanks ! (a) Determine whether the following variable declaration is valid int 1number; A Valid B Invalid (b) Determine whether the following variable declaration is valid i=1; A Valid B Invalid (c) Determine whether the following variable declaration is valid char a = 'a'; A Valid B Invalid

Flag question Which of the following statements are valid? Select one or more: {1,2,3,4,5} n {1,4,8, 12} = {1, 2, 3, 4, 5, 8, 12} O {1,3,5,7,9,11,.... } U {2, 4, 6, 8, 10, .... } = N (a, b, c, d, e} n {a, e, i, o, u} = {a, e} Let A = {1, 3, 5, 7, 9}, B = {2, 4, 6, 8} and C = {1,2,3,4}. Then (AUB) = {1,2,3,4} { 1, 3, 5, 7, 9, 11, .……. . For any sets X, Y and Z, the equality (X n Y) u Z = (XU Y) N Z is valid (Hint: You might use venn diagrams to help detemine if the equality is valid) } U {2, 4, 6, 8, 10, . .} = Ø Let A = {1,3,5,7,9}, B = {2, 4, 6, 8} C = {1, 2, 3, 4). Then (An B) UC = {1,2,3,4} If U = {1, 2, 3, ...., 7, 8, 9} then {1,3,5,7,9}º = {2,4,6,8}

a)Create a string variable and assign to it your favorite color. b) Write Matlab code that prompts the user to guess your favorite color. After the user has had 3 attempts, the program displays the message "Incorrect. You run out of chances!" and stops.

How do you: Construct a program that calculates the course overall grade point average (GPA). The program must input 3 scores for each of the categories listed in the calculation of the GPA provided below with exception of the final examination. The maximum score for all quizzes is 20 points each, the maximum score for all homework assignments is 50 points each, the maximum score for all tests and all programming assignments is 100 points each, and the maximum for the final examination is 120 points. You can select the scores that you make on each of these assessed items.   Assignments Scale Homework 10 % Programming Assignments 25 % Quizzes (Weekly) 15 % Tests 30 % Final Examination 20 % You must develop the formula for calculating the GPA using the information provided in the table. For example if the final examination has a maximum score of 120 and you get an 85. Then your weighted score for the final examination is calculated using the…