John has taken out a loan for college. he started paying off the loan with the first payment of $100. each month he pays, he wants to pay back 1.1 times the amount he payed the month before. explain to john how to represent his first 20 payments in sequence notation. then explain how to find the sum of the first 20 payments using complete sentences.

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: