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24 Cards in this Set
 Front
 Back
LCD

1. Write prime factors out
2. Cross out any PF in second denom. that appears in first denom 3. Multiply remaining factors 

Averages:
Mean Median Mode 
Mean: Sum of #s/ # of elements
Median: Middle Mode: Most often 

Average of X #s = Y...

X = number of elements
Y = the average Therefore, if sum/X = Y Sum = XY 

Ratio/Proportion

Ratio compares 2 #s
Proportion two equal ratios 

(X)^2,4,6,8,10...
(X)^1,3,5,9... 
Even power Always positive
Odd power Always negative 

Binomial Squares

FOIL First, Outer, Inner, Last


Linear Equation

Highest power of any variable is 1
Solve by isolating variable on 1 side 

Quadratic Equation

At least one variable is raised to 2nd power
Set one side of equation = 0 Factor out nonzero side Set each Factor = 0 and solve 

Binomial Squares

FOIL First, Outer, Inner, Last


Linear Equation

Highest power of any variable is 1
Solve by isolating variable on 1 side 

Quadratic Equation

At least one variable is raised to 2nd power
Set one side of equation = 0 Factor out nonzero side Set each Factor = 0 and solve 

Area of Triangle

A = 1/2bh


Rectangle Area, Perimeter

A = lw
P = 2l + 2w 

Circle

A = Pi r^2
C = Pi d or 2Pi r 

Length of Arc

Arc AB = (X/360) x 2Pi r


Pi

3.14 or 22/7


Inscribed Angle

1/2 measure of intercepted Arc


Surface Area of a Cube

S = 6a^2


Volume, SA

V = lwh
SA = sum of areas of all faces 

Distance

d =
Radical( x1x2)^2 + (y1y2)^2 

Midpoint

MP =
__x1+x2__ , __y1+y2__ 2 2 

Slope

__y1y2__
x1x2 if (x1 does NOT = x2) 

Fraction Denominatiors

Denominator decreases as Value increases


Algebraic expressions

Factor, Rearrange, Multiply Out
