Do
Percents?
Small# divided by big# times 100
Percent times number divided by 100
Volume:
Sphere
Cone
Pyramid
Rectangular Prism
Cylinder
4/3 x pi x r^3
1/3 x pi x r^2 x h
1/3 x lwh
lwh
bh
Area:
Square, rectangle, triangle
1. a squared
2. lw
3. 1/2 lw
Arithmetic Sequences
Tn=mn+b
Supplementary?
Complementary?
Congruent?
1. Equals 180
2. Angles opposite each other that are equal
3. The same
Quadratic degree
ax^2 plus bx plus c
Sum of angles in polygon
180x (n-2)
Reflex, acute, obtuse, right
More than 180, less than 360
Less then 90
More than 90
90
(a+b)^2
(a-b)^2
a^2+b^2+2ab
a^2+b^2-2ab
Sum of consecutive integers
Sum of consecutive integers, 50-100
N time n plus one divided by 100
Find sum of 1-100. Find sum of 1-49. Subtract sum 2 from sum 1
Exterior angles in a polygon
Interior angles in a triangle
1. 360
2. 180
Y or x
Y and x
+
X
Circumference of a circle?
Area of a circle?
1. Pi x D
2. Pi r^2
y= _x+_
Y=mx+b
Length of an arc
Parabola
X divided by 360 times C
-b divided by 2a
Probability
# of availability divided by total
Distance between two points.
Square root of (x1-x2)^2 + (y1-y2)^2
Range
Mean
Median
Mode
Biggest # minus smallest #
Sum of all numbers divided by number of entries
Middle number, or middle 2 numbers divided by 2
Most frequent number
Surface Area
Sphere, cylinder, rectangular prism
1. 4 x pi x r^2
2. pH x 2b
3. 2 (lw + lh + wh)
Slope
Y2-Y1 divided by X2-X1