# College Algebra Final formulas

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College Algebra Final formulas

### Continuously Compound Interest Formula

Af=Ai(2)-t/h Where Af is Amount Final(at present) is equal to Amount Initial times two raised to the negative of the amount of time passed divided by the Halflife.

### Malthusian Population Growth

P = Pµeⁿ°
Where P is current population, Pµ is initial population, e is raised to the ()number in years times the °growth rate (birth rate - death rate)

### nCr = n!/r!(n-r)!

Combinations Formula

### P(n,r) = n!/(n-r)!

Permutations Formula

logαMⁿ =nlogαM

### Factorial Notation

n! = n × (n - 1) × (n - 2) × (n - 3) × ... × 3 × 2 × 1

Example:

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