Advertisements claim that taking an SAT preparation course can significantly improve performance on the SAT. Assume there are three SAT preparation services available for students to enroll in and assume you have 200 students available to use in your experiment. Explain the design of an experiment to examine the claim that SAT preparation courses improve SAT scores and, if so, which of the preparation services would seem to be the best.

560

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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

answer: 323 is how many she has ☃☃⛄❄

step-by-step explanation:

c

step-by-step explanation: