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Gravity
Key Concepts:
Terms in this set (48)
Area of a Parallelogram
A = base(height)
Area of a Triangle
A = 1/2(base)(height)
Area of a Trapezoid
A = 1/2(height)(base + base)
Area of a Rectangle
A = length(width)
Area of a Circle
A=π(radius²)
Perimeter of a Rectangle
P=2length+2width
Circumference of a Circle
C = pi(diameter)
Volume of a Rectangular Prism
V=lwh
Volume of a Triangular Prism
V = Area of Base(prism height)
V = (1/2bh)height of prism
Volume of a Cylinder
V=πr²h
Surface Area of a Rectangular Prism
Top
Bottom
Side
Side
Front
Back
SA= 2LW + 2LW + 2WH
Surface Area of Triangular Prism
Triangle
Triangle
Rectangle
Rectangle
Rectangle
Surface Area of a Cylinder
S = 2πr²+2πrh
positive + positive =
positive
negative + negative =
negative
When adding numbers with different signs
Subtract and keep the sign of the bigger number
Simple Interest
I = principal(rate)(time)
**change percent to a decimal first and time must be in years
Constant of Proportionality
The constant ratio between two quantities
constant = y/x
To change a fraction to a decimal
divide the numerator by the denominator then multiply by 100
To change a decimal to a percent
multiply by 100 OR move the decimal 2 places to the right
To change a percent to a decimal
divide by 100 or move the decimal 2 places left
Percent Proportion
part/whole = %/100
Tax or Tip or Commission
Multiply the amount by the % written as a decimal then add.
12.00 with 8% tax
12(0.08) = 0.96 12 + 0.96 = $12.96
Discount
Multiply the amount by the % written as a decimal then subtract.
12.00 with 10% discount
12(0.10) = 1.20 12 - 1.20 = &10.80
Percent of Change
1. subtract to find the amount of change
2. write a proportion as shown
amount of change/original = x/100
positive(positive) =
positive
negative(negative) =
positive
positive(negative) =
Negative
positive/positive =
positive
negative/negative =
positive
negative/positive =
negative
prime number
A whole number that has exactly two factors, 1 and itself.
composite number
A whole number greater than 1 that has more than two factors.
Additive Inverse
a + (-a) = 0
Constant of Proportionality
the constant value of the ratio of two proportional quantities (y/x)
unit rate
A rate with a denominator of 1.
complementary angles
Two angles whose sum is 90 degrees
supplementary angles
Two angles whose sum is 180 degrees
vertical angles
A pair of opposite congruent angles formed by intersecting lines
adjacent angles
Angles that have a common side and a common vertex (corner point).
Prism
A solid figure that has two congruent, parallel polygons as its bases. Its sides are parallelograms
pyramid
A solid shape with a polygon as a base and triangular faces that come to a point (vertex or apex)
cylinder
A solid composed of two congruent circles in parallel planes, their interiors, and all the line segments parallel to the axis with endpoints on the two circles.
cone
A three dimensional shape with a circular base and a vertex opposite the base
Fundamental Counting Principle (FCP)
used to find the total number of outcomes with compound events
Theoretical Probability
What should occur or what we expect to happen in an experiment
experimental probability
Probability that is based on repeated trials of an experiment
tree diagram
A diagram used to show the total number of possible outcomes
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