ACT Z04 Math Answer Explanations

    Probability
    Equivalent expressions, FOIL method
    Algebraic Problems, Ratios
    Speed, Distance, and Time
    Speed, Distance, and Time, Unit Conversions (Feet to inches, miles to feet, hours to seconds)
    Trigonometry for Right Triangles
    Pythagorean Theorem and Special Right Triangles
    Probability
    Statistics (Mean, Median, Mode, Standard Deviation)
    Components of a Vector
    Area of Rectangle(square), Unit Conversions (Feet to inches, miles to feet, hours to seconds)
    Equation of a Circle
    Algebraic Problems
    Algebraic Problems
    Probability
    Matrix Multiplying
    Quadratic equations
    Pythagorean Theorem and Special Right Triangles
    Permutations
    Percentage Increase / Decrease, Ratios
    Graphing Circular Inequalities, Graphing Linear Inequalities
    Solving equations, Solving pairs of equations, Undefined fraction
    Amplitude, Period, Phase Shift and Frequency, Graphs of Sine, Cosine and Tangent
    Sum of angles of a triangle, The law of sines & The law of cosines