ACT E23 Math Answer Explanations

    Equivalent expressions, Laws of exponents
    Sum of angles of a triangle
    Absolute value, Adding, subtracting, multiplying and dividing positive and negative numbers
    Adding & subtracting matrices
    Algebraic Problems, Fractions
    Trigonometry for Right Triangles
    Pythagorean Theorem and Special Right Triangles
    Quadratic equations, Roots of Quadratic Equation
    Independent Events
    Speed, Distance, and Time
    Area of Rectangle(square), Perimeter of Rectangle
    Unit Conversions (Feet to inches, miles to feet, hours to seconds)
    Statistics (Mean, Median, Mode, Standard Deviation)
    Equation of a Circle
    Statistics (Mean, Median, Mode, Standard Deviation)
    Sales tax
    Statistics (Mean, Median, Mode, Standard Deviation)
    Pythagorean Theorem and Special Right Triangles
    Sum of angles of a triangle
    Speed, Distance, and Time
    Amplitude, Period, Phase Shift and Frequency
    Absolute value, Adding, subtracting, multiplying and dividing positive and negative numbers
    Number Line, Writing and Solving Inequalities
    Absolute value, Squares and Square Roots
    Laws of exponents, Laws of Logarithms
    The law of sines & The law of cosines
    Statistics (Mean, Median, Mode, Standard Deviation)
    Combinations, Probability