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Gravity
Terms in this set (33)
Percent formula
Is/of=percent/100
Order of operations
Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right
Greatest Common Factor (GCF)
The greatest number that divides into both numbers
Least Common Multiple (LCM)
Smallest number that both numbers divide evenly into
Distance Formula
Distance = rate x time; Rate = distance/time; Time = distance/rate
Area of a parallelogram
Base x height
Area of a triangle
1/2 (base)(height)
Average
Sum of the numbers/number of numbers
Mean
Average
Median
The middle number when the numbers are arranged in order
Mode
The number that occurs the most often
Range
The difference between the largest and smallest number in the set
Triangle measurement
The three angles equal 180 degrees when added together
Pythagorean theorem
a^2 + b^2 = c^2
Vertical angles
Opposite angles that are formed when 2 lines intersect
Circumference
The perimeter of a circle; 2 Pi r or Pi d
Equation of a circle
(x - h)^2 + (y - k)^2 = r^2
Sum of angles on a straight line
180 degrees
SOH CAH TOA
Sin = opposite/hypotenuse; cos = adjacent/hypotenuse; Tan = opposite/adjacent
Probability
Number of successes/number of possible outcomes
Simplify (a + x)^2
(a + x)(a + x) = x^2 + 2ax + a^2
Solve a system of equations using substitution
1. Solve one equation for one variable (y =
2. Substitute this vale into the second equation in place of the variable
3. Solve for that equation
4. Plug solution into original equation to solve for the second variable
5. Write your answer as an ordered pair (x, y)
Slope of parallel lines
Identical
Slope of perpendicular lines
Opposite inverse of each other
Slope formula
Y2 - Y1/X2 - X1
Distance formula
Square root of (X2 - X11)^2 + (Y2 - Y1)^2
Midpoint formula
( X1 + X2/2), (Y1 + Y2/2)
Slope intercept form
y = mx + b
Arithmetic sequence
each term is equal to the previous term plus X
Geometric Sequence
each term is equal to the previous term multiplied by X
Percent of Change
Amount of change/original amount x 100
Simple interest
principal x rate x time
Quadratic Equation
-b+- square root of b^2 -4ac/2a
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