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24 Cards in this Set
- Front
- Back
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LCD
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1. Write prime factors out
2. Cross out any PF in second denom. that appears in first denom 3. Multiply remaining factors |
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Averages:
Mean Median Mode |
Mean: Sum of #s/ # of elements
Median: Middle Mode: Most often |
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Average of X #s = Y...
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X = number of elements
Y = the average Therefore, if sum/X = Y Sum = XY |
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Ratio/Proportion
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Ratio- compares 2 #s
Proportion- two equal ratios |
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(-X)^2,4,6,8,10...
(-X)^1,3,5,9... |
Even power- Always positive
Odd power- Always negative |
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Binomial Squares
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FOIL- First, Outer, Inner, Last
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Linear Equation
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-Highest power of any variable is 1
-Solve by isolating variable on 1 side |
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Quadratic Equation
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-At least one variable is raised to 2nd power
-Set one side of equation = 0 -Factor out non-zero side -Set each Factor = 0 and solve |
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Binomial Squares
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FOIL- First, Outer, Inner, Last
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Linear Equation
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-Highest power of any variable is 1
-Solve by isolating variable on 1 side |
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Quadratic Equation
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-At least one variable is raised to 2nd power
-Set one side of equation = 0 -Factor out non-zero side -Set each Factor = 0 and solve |
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Area of Triangle
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A = 1/2bh
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Rectangle Area, Perimeter
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A = lw
P = 2l + 2w |
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Circle
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A = Pi r^2
C = Pi d or 2Pi r |
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Length of Arc
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Arc AB = (X/360) x 2Pi r
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Pi
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3.14 or 22/7
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Inscribed Angle
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1/2 measure of intercepted Arc
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Surface Area of a Cube
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S = 6a^2
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Volume, SA
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V = lwh
SA = sum of areas of all faces |
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Distance
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d =
Radical( x1-x2)^2 + (y1-y2)^2 |
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Midpoint
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MP =
__x1+x2__ , __y1+y2__ 2 2 |
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Slope
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__y1-y2__
x1-x2 if (x1 does NOT = x2) |
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Fraction Denominatiors
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Denominator decreases as Value increases
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Algebraic expressions
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Factor, Rearrange, Multiply Out
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