1. Draw ER Diagram using symbols and notation for a simple school management system that captures the details of student, course and instructor. In the system, student has relationship with course and instructor
has relationship with course. Describe the relationships and determine the type of relationship between
the entities in the real world in your diagram. Student has name, stud id, phone number, email, date of
birth, age, year enrolled and years stayed in school. Course has course code and course name. Instructor
has name, instructor id and phone number.
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In your ice breakers game, what happens when the snowball collides with one of the snowboards? a. the player's score will increase. b. the snowball will leave the play area. c. the snowball will be destroyed. d. the snowball will bounce.

Matlab question: use switch and anythe lottery game matches three different integer numbers between 1 and 10. winning depends on how many matching numbers are provided by a player. the player provides three different integers between 1 and 10.if there is a match of all 3 numbers, the winning $ 1000.if there is a match with 2 numbers, the winning $ 10.if there is a match of all with 1 numbers, the winning $ 1.with no match, the winning is $0.write a function lottery3 that checks three numbers provided by a player and determine the winning amount. if the user mistakenly enters same number twice/thrice and if that number matches one of the winning numbers, the code should count that number only once and display correct result. the player doesn’t have to guess the order of numbers.the input to the function lottery3 can have up to two input arguments. the first input argument is a row array numbers with 3 numbers. if the second argument input testcode is present, and is a row vector of 3 values, the function lottery3 uses the code in testcode as the three winning numbers (the test must be three different integer numbers between 1 and 10), else three different numbers will be automatically generated by testcode.the ouput should return the variable winnings and the three winning numbers in the row array winnumbers.hint: make use of the internal function any.restriction: the function must use switch-case statements to determine the winning.example #1: winning = lottery3( [1,2,1],[1,2,3])produceswinning =10example #2: [winning,winnumbers] = lottery3( [1,2,3])produceswinning =3winnumbers =8 5 3

Aletter or menu command that starts an action when the user presses the designated letter and the alt key together is called what?