Discriminated Union Create a discriminated union for Coordinates that can be a Tuple, Threeple or Fourple that represent tuples of size two, three and four. The type for the union should be polymorphic. Instantiate a Tuple of integers, a Threeple of floats and a Fourple of strings. Create a function that has a parameter of a binary function and Coordinate. Apply the function to the Coordinate like List. reduce. Call the function with ( ) for each of the Coordinates in part (b). Call the function with (-) for the numeric Coordinates in part (b). Be sure that your function implements the normal associativity for (-).

1. ask the user how many questions are in the quiz. 2. ask the user to enter the key (that is, the correct answers). there should be one answer for each question in the quiz, and each answer should be an integer. e.g., 34 7 13 100 81 3 9 10 321 12 might be the key for a 10-question quiz. you will need to store the key in an array. 3. ask the user to enter the answers for the quiz to be graded. there needs to be one answer for each question. note that these answers do not need to be stored; each answer can simply be compared to the key as it is entered. 4. when the user has entered all of the answers to be graded, print the number correct and the percent correct. 5. add a loop so that the user can grade any number of quizzes with a single key. after the results have been printed for each quiz, ask "grade another quiz? (y/n)." note: you only have one array (the key). you are not creating a new key for each set of quiz answers.

In microsoft word, when you highlight existing text you want to replace, you're in              a.  advanced mode.    b.  automatic mode.    c.  basic mode.    d.  typeover mode

Adrawing that places all lines parallel to the z axis at an angle from the horizon is 99 ! a. an oblique drawing b. a perspective drawing c. an auxiliary view d. a one-point perspective drawing