9. A deposit of $100,000 is made to an investment fund at the beginning of a year. On the last day of each year two dividends are awarded. The first dividend is 20% of the amount in the account during that year. The second divi- dend is 45% ofthe amount in the account in the previous year. a) Find a recurrence relation for {Pnl, where Pn is the amount in the account at the end ofn years ifno money is ever withdrawn.

b) has been withdrawn?

wedfghjkl;

tyuiop[]ghjkl;

step-by-step explanatio89

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