Other flashcards
1
Q
Formula for area of a circle
A
pi * r^2
2
Q
What is the distance formula given two points on the coordinate plane, (x1 , y1) and (x2 , y2)?
A
sqrt( (x_1 - x_2)^2 + (y1 - y2)^2 )
3
Q
What is the probability of ~E?
A
P(~E) = 1 - P(E)
4
Q
a / b + c / d
A
(ad + bc) / bd
5
Q
What is the formula for compounding interest?
A
P = original principal
A = new principal
r = interest rate
n = compounding frequency
t = time
A = B(1 + r/n) & nt
6
Q
Percent increase/decrease
A
Percent change from x1 to x2
(100 * (x1 - x2) / x1)%
7
Q
What is the Zero Product Property?
A
A product of factors is zero if and only if one or more of the factors is zero. That is, a b equals 0 if and only if either a equals 0 or b equals 0 (or both).
8
Q
b ^ (n / m)
A
m root (b^n)
9
Q
A
