Equations
Defintion
Real life
100

an=a1+(n-1)d/

Arithmetic sequences

100

convergences

process where a sequence or series approaches a specific limit as the number of terms increases

100

ann clay saves 40 dollars the first week and decides to add 5 each week. How much money will she have by the 20 week

1750

200

an=ar^n-1

geometric sequence 

200

sequences

type of function where the input is a natural number and the output is an element of a sequence

200

ily is studying a virus. She starts with 5 of this virus but by week 3 there is 20. What is the d

7.5

300

Sn=n(a1+an/2)

sum of the sequence 

300

geometric formula 

A geometric series is the sum of the terms of a geometric sequence

300

find S 20 if a1=2 and d=4

800

400

s=a1/1-r

infinte geometric sequence 

400

series 

adding infinitely many numbers or quantities to a given starting number or amount.

400

If you earn 100 points your first month, and each month you earn 10% more, how many point will you have in 5 months 

610.51