volume
cube
V=s*s*s
rectangle
A=b*h
diameter
d=2*r
mean
Number of times an event occurs/total number of all events
simple interest
Interest=principle * rate * time
rectangular prism
V=l*w*h
triangle
A=1/2*b*h
circumference
C=2*pi*r
median
middle value in a set of numbers
distance traveled
distance=rate * time
any other prism, but rectangular
V=B*h
circle
A=3.14*r*r
circumference
C=pi*d
mode
most common number in a set
pythagorean theorem
a2+b2=c2
cylinder
V=3.14*r*r*h
trapezoid
A=1/2*h(b1+b2)
volume of a sphere
V=4/3*pi*r*r*r
range
difference between the highest and lowest values in the set
slope
y2-y1/x2-x1 (rise over run)
pyramid
V=1/3*B*h
perimeter of any figure
The sum of the lengths of all the sides?
surface area of a sphere
S=4*pi*r*r
the measures of central tendency
mean, median, mode, range
y intercept form
y=mx+b