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SAT Math 2 subject test

# SAT Math 2 subject test - Term Definition Pith thing for...

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Term: Pith thing for factors/multiples Definition: Factors are few. Multiples are many. Term: Average formula Definition: A=sum/# Term: Repeated percent increase formula Definition: Final amount = original * (1+ Rate) ? =original * (1+ Rate) ^ (number of changes) Term: Repeated percent decrease formula Definition: Final amount = original * (1- Rate) ? =original * (1- Rate) ^ (number of changes) Term: Definition of a logarithim Definition: logbN= x <--> b^x= N

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Term: Change of base formula Definition: logbA= logA/logB Term: work done formula Definition: work done= rate of work *time Term: Area of an equilateral triangle formula Definition: A=(s²?3) / 4 Term: Area of a triangle formula (two) Definition: A=1/2bh= 1/2absin? Term: Area of a parallelogram Definition: A=bh=absin?
Term: Area of a square Definition: A=s²= d²/2 (diagonal) Term: Area of a trapezoid Definition: A= average of bases*height= (b?*b?/2)h Term: Sum of angles of n-sided regular polygon Definition: S=(n-2)180° Term: Inscribed angle is... Definition: 1/2 the central angle Term: The long diagonal of a rectangular solid is (super Pythagorean theorem) Definition: a²+b²+c²=d²

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Term: The face diagonal of a cube is Definition: face diagonal= s?2 Term: The long diagonal of a cube is Definition: long diagonal= s?3
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