# Beginning of the year

## Terms

undefined, object
copy deck
0 flats or sharp
Key of
C Major
A Minor
1 sharp
Key of
G Major
E Minor
2 sharps
Key of
D Major
B Minor
3 sharps
Key of
A Major
F# Minor
4 sharps
Key of
E Major
C# Minor
5 sharps
Key of
B Major
G# Minor
6 sharps
Key of
F# Major
D# Minor
7 sharps
Key of
C# Major
A# Minor
1 flat
Key of
F Major
D Minor
2 flats
Key of
Bb Major
G Minor
3 flats
Key of
Eb Major
C Minor
4 flats
Key of
Ab Major
F Minor
5 flats
Key of
Db Major
Bb Minor
6 flats
Key of
Gb Major
Eb Minor
7 flats
Key of
Cb Major
Ab Minor
circumfrence
C=2(pi)r or (pi)d
Area of a trapezoid
A=1/2h(b1+b2)
Area of Rhombus
A=1/2(d1)(d2)
Area of Circle
A=(pi)r(squared)
Volume of a cylinder
V=(pi)r(squared)h
Volume of a cube
V=S^3
Distance
D=(root of)(x2-x1)2+(y2-y1)
Slope
m=y2-y1 over x2-x1
Circle equation
(x-h)2+(y-k)2=r2
Natural/Counting numbers
1, 2, 3
Whole numbers
0, 1, 2, 3
Rational numbers
fractions and whole numbers
irrational numbers
non repeating and non terminating decimals
Real numbers
all rational and irrational numbers
Property of Density
there is always another real number between any two real numbers
Integers
negative and positive numbers
commutative property
either way the numbers are added or multiplied, the answer is the same
associative prperty
the way in which numbers are gropued when adding or multiplying doesn't matter
a+0=a
Multiplicative identity
ax0=a