# ACT D03 Math Answer Explanations

Combining like terms

Writing and Solving Inequalities

Percentages

Distance formula (distance between 2 points, vertical distance, horizontal distance)

Least Common Multiple (LCM)

Writing and Solving Inequalities

Solving equations

Survey Design and Interpreting Results

Reflection

Perimeter of Rectangle

Area of Rectangle(square)

Laws of exponents

Solving equations

Adding, subtracting, multiplying and dividing positive and negative numbers

Pythagorean Theorem and Special Right Triangles

Solving pairs of equations

Frequency Tables, Histograms, and Standard Deviation

Statistics (Mean, Median, Mode, Standard Deviation)

Sum of angles of a triangle, Triangles

Distance formula (distance between 2 points, vertical distance, horizontal distance)

Laws of exponents

The law of sines & The law of cosines

Reflection, Translations

Adding, subtracting, multiplying and dividing positive and negative numbers

Midpoint Formula, Number Line

Pythagorean Theorem and Special Right Triangles, Speed, Distance, and Time

Percentage Increase / Decrease

Laws of exponents

Speed, Distance, and Time, Unit Conversions (Feet to inches, miles to feet, hours to seconds)

Sine, Cosine and Tangent in Four Quadrants

Statistics (Mean, Median, Mode, Standard Deviation)

Area of Triangle

Composite functions

Perimeter of Circle

Laws of exponents, Laws of Logarithms

Arithmetic sequences, Perimeter of Rectangle, Unit Conversions (Feet to inches, miles to feet, hours to seconds)

Equivalent expressions

Roots of Quadratic Equation