A graph of a trigonometric function is shown on a coordinate plane. Each branch of the graph begins at positive infinity, passes through the x-axis, and decreases to negative infinity. There are vertical asymptotes at equal intervals. Use the graph to answer the question.
Which of the following can be the parent function of the graph? Select all that apply.
A. sin x
B. cos x
C. tan x
D. cot x
E. sec x
F. csc x

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100