ACT D05 Math Answer Explanations

    Algebraic Problems
    Combinations
    Circle Graphs (Pie Charts)
    Trigonometry for Right Triangles
    Quadratic equations, Sets
    Complex Number, Undefined fraction
    Least Common Multiple (LCM)
    Probability
    Area of Circle, Area of Triangle, Equation of a Circle, Tangent to a circle
    Independent Events, Probability
    Expand a binomial to the fourth degree
    Algebraic Problems
    Division of imaginary numbers (the use of conjugates)
    Factoring cubic polynomials
    Absolute value, Adding, subtracting, multiplying and dividing positive and negative numbers
    Pythagorean Theorem and Special Right Triangles, Trigonometry for Right Triangles
    Area of Rectangle(square), Arithmetic sequences, Unit Conversions (Feet to inches, miles to feet, hours to seconds)
    Pythagorean Theorem and Special Right Triangles, Speed, Distance, and Time
    Area of Triangle, Pythagorean Theorem and Special Right Triangles
    Laws of Logarithms
    Laws of Logarithms
    Solve a System of Nonlinear Equations
    Permutations
    Percentage Increase / Decrease
    Averages, Percentages
    Speed, Distance, and Time, Unit Conversions (Feet to inches, miles to feet, hours to seconds)
    Components of a Vector
    Frequency Histogram
    Distance formula (distance between 2 points, vertical distance, horizontal distance)
    Statistics (Mean, Median, Mode, Standard Deviation)
    Ellipse
    Speed, Distance, and Time, Unit Conversions (Feet to inches, miles to feet, hours to seconds)