F(t)= -6cos 4t graphed

According to the data set, where should the upper quartile line of the box plot be placed?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?