8. Jack tossed a coin four times. What are all the possible outcomes of the coin landing heads up or tails up?

What is 20+(5 x 2/5 )+ 3 show your work

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0