Quarter 3 Exam Flashcards
What is the formula for a arithmetic series?
An=A1+(n-1)d
What is the formula for a geometric series?
An=A1r^n-1
What is an arithmetic series?
A series that progresses by adding for subtracting
What is a geometric series?
A series that progresses by multiplying or dividing
What is the recursion formula for an arithmetic series?
An=A1-1+d
What is the recursion formula for a geometric series?
An=rxAn-1
What is the summation formula for an arithmetic series?
Sn=n(A1+an)/2
What is the summation formula for an arithmetic series?
Sn=A1-A1r^n/1-r
To find the V.A. you…
Set the denominator equal to zero
How do you find the H.A.?
Numerator greater degree- no H.A.
Denominator greater degree- y=0
Same degree- y=a/b
If the question has a percent…
Use the geometric summation formula
What is the formula to find the z score?
Z=x-m/o
