Math Formulas - ATI TEAS 7

What is the Equation to find a Slope

m = (y2-y1) / (x2-x1)

The mode is the most _____ number

common

The mean is the ____ and the median is the ____

average middle

What is the highest point of a shape?

apex

How to find slope:

y2-y1/x2-x1= rise/run

Perimeter - Formula

P=s+s+s....

Add all sides

Circumference of a Circle - Formula

2πr or C=πd

Perimeter of a Rhombus - Formula

P = 2√(d1)² + (d2)²

Area of a Square - Formula

s²

Area of a Rectangle - Formula

lw

Area of a Triangle - Formula

1/2bh

Area of a Circle - Formula

πr²

Area of a Parallelogram - Formula

A=bh

Area of a Trapezoid - Formula

A=1/2(b1+b2)h

Area of a Rhombus (or Kite) - Formula

A=1/2(d1xd2)

Volume of ANY Prism - Formula

A = area of base x height

Volume of a Cube - Formula

s³

Volume of a Rectangular Prism - Formula

length x width x height

Volume of a Cylinder - Formula

πr²h

Volume of a Sphere - Formula

V=4/3πr³

Volume of a Triangular Prism - Formula

bxhxl all over 2

Volume of a Rectangular Pyramid - Formula

V=lwh/3

Volume of a Cone - Formula

V=πr²h/3

pi x radius squared x h x 1/3

∑

sum of terms that follow a pattern

Standard Deviation - Formula

SD = √ (∑(x-u)²)/n-1

SD = square root of the sum of (#-mean)² / n-1

x=number itself

u=mean of numbers

n=number of individual numbers

For Sample use n-1 -> SD = √ (∑(x-u)²)/n-1

For Population use n -> SD = √ (∑(x-u)²)/n

Sum of Angles - Formula

(n-2)180

(number of sides of the shape - 2) x 180 degrees

n=sides of shape

Distance - Formula

rate x time

Pythagorean Theorem

a²+b²=c²

Slope Intercept - Formula

y=mx+b

1 lb = ___ oz

16

1 kilogram = ___ pounds

2.2

1 ton = ___ lb

2000

1 inch = ___ centimeters

2.54

1 meter = ___ feet

3.28

1 mile = ______ ft

5280

1 mile = ____ kilometers

1.6

1 ounce = ___ grams

28.35

1 cup = ____ oz

8

2 cups = ____ pint

1

2 pints = ____ quart

1

4 quarts = ____ gallon

1

4 quarts = ____ gallon

1

1 gallon = ___ liters

3.8