Which of the following statements are not true regarding functions?
(more than one answer work)

a. the horizontal line test may be used to determine whether a function is one-to-one.
b. the vertical line test may be used to determine whether a function is one-to-one.
c. a function is a relation in which each value of the input variable is paired with at least one value of the output variable.
d. a sequence is a function whose domain is the set of natural numbers.

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2