Equations Everyone should Know
Basic, Everyday Use
The equations that you absolutely have to know, and more or less use on a daily basis are the four basic equations (functions) of algebra. These four equations are the following:
a+b=c
a-b=c
a*b=c (usually single digit multiplications of the multiplication table is sufficient for everyday life)
a/b=c
Below are some more equations that you could use frequently:
Average=Sum of terms/number of terms
Probability=Favorable events/Total Possible Events
Equations for General Knowledge
Pithagorean Theorem:a2+b2=c2
Newton's law:F=ma
Einstien's law: E=mC2
Fibonaccy number : Fn=Fn-1+Fn-2 (a number in a sequence where each number is the the sum of the previous two numbers)
Rule of 72 by Einstien: years to double=72/Interest rate
Simple Interest=Principal*Interest Rate*Number of Periods
Momentum=Mass*velocity
(Absolute pressure of gas)(volume of gas)=(number of moles)(universal gas constant, which is R = 8.3145 J · mol-1 · K-1)(absolute temperature)