Comprehensive Math Formulas (Student Edition)

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Arithmetic

$a + b = c$
$a - b = c$
$a \times b = c$
$a \div b = c$
$\bar{x} = \frac{x_{1} + x_{2} + \dots + x_{n}}{n}$ Average of n values

Algebra

$x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$ Quadratic formula
$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ Slope between two points
$d = \sqrt{{x_{2} - x_{1}}^{2} + {y_{2} - y_{1}}^{2}}$ Distance between two points

Geometry

$A = π r^{2}$ Area of a circle
$V = \frac{4}{3} π r^{3}$ Volume of a sphere
For an extended list of geometry formulas, visit the geometry reference page or download the Comprehensive Geometric Formulas PDF.