ALGEBRA

posted by .

A history teacher gives a 20 question T-F exam. In how many different ways can the test be answered if the possible answers are T or F, or possibly to leave the answer blank?

  • ALGEBRA -

    I THINK 60 (not sure)

  • ALGEBRA -

    2 choices for each answer gives 2^20 = 1,048,576

    including blanks, that's 3 choices for each question, or 3^20 = 3,486,784,401

  • ALGEBRA -

    100

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    A teacher prepares a test. She gives 5 objective type questions out of which 4 have to be answered. Find the total ways in which they can be answered if the first 2 question have 3 chioce and the last 3 have 4 choices. I think this …
  2. math

    a multiple choice test has 8 questions with 4 possible answers for each question. if a student were to guess the answer to each question how many different ways would there be to answer the test A. 32 B. 4 C. 65 536 D. 4 096
  3. MATH

    A history teacher gives a 27 question T-F exam. In how many different ways can the test be answered if the possible answers are T or F, or possibly to leave the answer blank?
  4. math

    A history teacher gives a 22 question T-F exam. In how many different ways can the test be answered if the possible answers are T or F, or possibly to leave the answer blank?
  5. Math

    An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam?
  6. Math

    There are 20 question in a quiz. 5 marks will be given for a correct answer. 1 mark will be deducted for a blank answer and 3 marks will be deducted for a wrong answer. (a) Peter gives 2 blank answers and he gets 72 marks. Find the …
  7. Probability/Statistics

    The teacher of a mathematics class has written up the final exam, but wants the questions to be random for each student. There are 28 students in the class, and the test has 100 questions. Each question has four possible answers. a. …
  8. math

    The teacher of a mathematics class has written up the final exam, but wants the questions to be random for each student. There are 28 students in the class, and the test has 100 questions. Each question has four possible answers. a. …
  9. Probability/Statistics

    The teacher of a mathematics class has written up the final exam, but wants the questions to be random for each student. There are 28 students in the class, and the test has 100 questions. Each question has four possible answers. a. …
  10. probabilities

    A multiple choice test has 16 questions. Each question has 4 possible answers with only one is correct. Assume that all questions are answered and the probability to answer any question correctly is 0.25. Let X be the number of questions …

More Similar Questions