Which of the following statements are true regarding functions? Check all that apply. O A. The vertical line test may be used to determine whether a relation is a function. OB. A sequence is a function whose domain is the set of rational numbers. C. The horizontal line test may be used to determine whether a function is one-to-one. D. A function is a relation in which multiple values of the input variable are paired with at least one of the output variable.​

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

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step-by-step explanation:

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