Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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 non-zero 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 non-zero 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( x1-x2)^2 + (y1-y2)^2 |
|
Midpoint
|
MP =
__x1+x2__ , __y1+y2__ 2 2 |
|
Slope
|
__y1-y2__
x1-x2 if (x1 does NOT = x2) |
|
Fraction Denominatiors
|
Denominator decreases as Value increases
|
|
Algebraic expressions
|
Factor, Rearrange, Multiply Out
|