Español English Português 中文

Computing | Finance & Economy | Geometry | Humanities | Math | Science

Math

Algebra: Absolute value
Absolute Inequalities Absolute Value Absolute Value and Number Lines Absolute Value Equations Absolute Value Inequalities Absolute Value of Integers	Comparing Absolute Values Number Properties and Absolute Value Suggest topic Algebra: Absolute value Inserta este menú en tu sitio

Algebra: Exponents and Radicals
Adding and Simplifying Radicals Adding and Subtracting Rational Expressions Addition and Subtraction with Significant Figures Applying Radical Equations Approximating Square Roots Evaluating exponential expressions Exponent Properties Exponent Properties Involving Products Exponent Properties Involving Quotients Exponent Rules Extraneous Solutions to Radical Equations Finding Cube Roots Fractional Exponent Expressions How to Rationalize a Denominator Level 1 Exponents	Level 2 Exponents Level 3 exponents More on Significant Figures More Rational Exponents and Exponent Laws More Simplifying Radical Expressions Multiplying and Dividing Rational Expressions Multiplying and Dividing with Significant Figures Multiplying in Scientific Notation Negative and Positive Exponents Negative Exponent Intuition Pythagorean Theorem Radical Equivalent to Rational Exponents Radical Expressions with Higher Roots Rational Exponents and Exponent Laws Scientific notation	Significant Figures Simplifying Cube Roots Simplifying Expressions with Exponents Simplifying Radical Expressions Simplifying radicals Simplifying Square Roots Simplifying Square Roots Comment Response Solving Radical Equations Square Roots and Real Numbers Subtracting and Simplifying Radicals Understanding Exponents Understanding Square Roots Zero, Negative, and Fractional Exponents Suggest topic Algebra: Exponents and Radicals Inserta este menú en tu sitio

Algebra: Graphing linear equations and inequalities
Algebra: Equation of a line Algebra: graphing lines Algebra: Slope Algebra: Slope and Y-intercept intuition Application problem with graph CA Algebra I: Graphing Inequalities CA Algebra I: Slope and Y-intercept Converting to slope-intercept form Direct Variation Models Distance Formula Equation of a line Equation of a Line hairier example Equations of Parallel and Perpendicular Lines Exploring linear relationships Fitting a Line to Data Graphical Slope of a Line	Graphing a line in slope intercept form Graphing Inequalities Graphing linear inequalities in two variables Graphing Using Intercepts Graphing using X and Y intercepts Graphs of Linear Equations Graphs Using Slope-Intercept Form Hairier Slope of Line Interpreting Linear Graphs Linear Equations in Point Slope Form Linear Equations in Slope Intercept Form Linear Equations in Standard Form Midpoint Formula Ordered pair solutions of equations Parallel Line Equation Parallel Lines	Perpendicular Lines Plot ordered pairs Plotting (x,y) relationships Point-slope and standard form Quadrants of Coordinate Plane Recognizing Linear Functions Slope and Rate of Change Slope and Y-intercept Intuition Slope Example Slope of a line Solving and graphing linear inequalities in two variables The Coordinate Plane Word Problem Solving X and Y intercepts Suggest topic Algebra: Graphing linear equations and inequalities Inserta este menú en tu sitio

Algebra: Introduction to Algebra
Abstract-ness Descartes and Cartesian Coordinates Origins of Algebra The Beauty of Algebra Suggest topic Algebra: Introduction to Algebra Inserta este menú en tu sitio

Algebra: Logarithms
Calculator for Natural Logarithms Change of Base Formula Graphing Natural Logarithm Function Introduction to logarithm properties Introduction to Logarithms Logarithm of a Power	Logarithmic Equations Logarithmic Scale Natural Logarithm with a Calculator Proof: A(log B) = log (B^A), log A - log B = log (A/B) Proof: log a + log b = log ab Proof: log_a (B) = (log_x (B))/(log_x (A))	Richter Scale Solving Logarithmic Equations Sum of Logarithms with Same Base Using Multiple Logarithm Properties to Simplify Suggest topic Algebra: Logarithms Inserta este menú en tu sitio

Algebra: Ratios & proportions
Advanced ratio problems Alternate Solution to Ratio Problem Another Take on the Rate Problem Application problems involving units of weight Applying Rational Equations Applying the Metric System Comparing Celsius and Farenheit temperature scales Conversion between metric units Converting Farenheit to Celsius Converting Gallons to quarts pints and cups Converting pounds to ounces Converting within the metric system Converting Yards into Inches	Extraneous Solutions to Rational Equations Find an Unknown in a Proportion Finding Unit Prices Finding Unit Rates Introduction to Ratios More advanced ratio problem--with Algebra Performing arithmetic calculations on units of volume Perimeter and Unit Conversion Ratio and Proportion Ratio problem with basic algebra Rational Equations Rational Inequalities Ratios as Fractions in Simplest Form	Simplifying Rates and Ratios Solving application problems involving units of volume Solving Rational Equations U.S. Customary and Metric units Understanding Proportions Unit conversion Unit Conversion Example: Drug Dosage Unit Conversion with Fractions Writing Proportions Suggest topic Algebra: Ratios & proportions Inserta este menú en tu sitio

Algebra: Solving linear equations
Absolute Value Equation Examples Absolute Value Equations Age word problems Algebra: Linear Equations Algebraic Word Problem Another Percent Word Problem Application problems with equation in one variable Averages Basic Linear Function Basic Rate Problem Converting Repeating Decimals to Fractions Direct Variation Direct Variation Application Early Train Word Problem Equation Special Cases Equations	Equations of Sequence Patterns Equations with Variables on Both Sides Evaluate a formula using substitution Evaluating Expressions with Two Variables Example of Solving for a Variable Finding the 100th Term in a Sequence Growing by a percentage Integer sums More percent problems Multi-Step Equations New Operator Definitions One Step Equations Order of Operations Example Patterns in Sequences Percent Problems Proportionality Constant for Direct Variation	Rearrange formulas to isolate specific variables Simple Equations Solving Equations Solving Equations with the Distributive Property Solving for a Variable Solving One-Step Equations Sum of Consecutive Odd Integers Taking percentages Two-Step Equations Variables and Expressions Variables Expressions and Equations Word Problem Solving Writing Proportions Suggest topic Algebra: Solving linear equations Inserta este menú en tu sitio

Algebra: Solving linear inequalities
Absolute Value Inequalities Absolute value inequalities Example Compound Inequalities Compund Inequalities Equations and Inequalities Inequalities	Inequalities on a number line Inequalities Using Addition and Subtraction Inequalities Using Multiplication and Division Interpreting Inequalities Multi-Step Inequalities One-Step Inequalities	Solving Inequalities Writing and using inequalities Suggest topic Algebra: Solving linear inequalities Inserta este menú en tu sitio

Algebra: Systems of equations and inequalities
Addition Elimination Method Consistent and Inconsistent Systems Graphical Systems Application Problem Graphing Systems of Equations Graphing Systems of Inequalities Independent and Dependent Systems Mixture problems Officer on Horseback Overtaking Word Problem Passed Bike Word Problem Passing Trains Patterns and Equations	Problem Solving Word Problems Solutions to Three Variable System Solving Linear Systems by Graphing Solving Linear Systems by Substitution Solving systems by elimination Solving Systems by Graphing Solving systems by substitution Solving Systems of Equations by Elimination Solving Systems of Equations by Multiplication Special Types of Linear Systems Substitution Method System of Inequalities Application	Systems and rate problems Systems of equations Systems of Inequalities Systems of Three Variables Testing a solution for a system of equations Testing Solutions for a System of Inequalities The Substitution Method Three Equation Application Problem Two Passing Bicycles Word Problem Suggest topic Algebra: Systems of equations and inequalities Inserta este menú en tu sitio

Geometry - Basic
Area and Perimeter Area of a Circle Circles: Radius, Diameter and Circumference Cylinder Volume and Surface Area Parts of a Circle Perimeter and Area Basics	Perimeter and Area of a Non-Standard Polygon Perimeter of a Polygon Solid Geometry Volume Volume of a Sphere Suggest topic Geometry - Basic Inserta este menú en tu sitio

Probability
Addition Rule for Probability Basic Probability Binomial Distribution Birthday Probability Problem Coin Flipping Example Combinations Compound Probability of Independent Events Conditional Probability and Combinations Dependent Probability Example Events and Outcomes Exactly Three Heads in Five Flips Expected Value of Binomial Distribution	Expected Value: E(X) Frequency Probability and Unfair Coins Generalizing with Binomial Coefficients (bit advanced) Getting At Least One Heads Getting Exactly Two Heads (Combinatorics) Independent Events Introduction to Random Variables Law of Large Numbers LeBron asks about the chances of making 10 free throws Mega Millions Jackpot Probability Permutations Permutations and Combinations	Poisson Process Probability Probability Density Functions Probability of Dependent Events Probability of More Complex Outcome Probability using Combinations Probability with Playing Cards and Venn Diagrams Simple Probability Term Life Insurance and Death Probability Suggest topic Probability Inserta este menú en tu sitio

Trigonometry
Basic Trigonometry Determining the equation of a trigonometric function Ferris Wheel Trig Problem Fun Trig Problem Graph of the sine function Graphing trig functions Graphs of trig functions Inverse Trig Functions: Arccos Inverse Trig Functions: Arcsin Inverse Trig Functions: Arctan	Law of cosines More trig graphs Navigation Word Problem Polar Coordinates Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b) Proof: Law of Sines Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b) Radians and degrees Tau versus Pi The unit circle definition of trigonometric function	Trig identities Trigonometric Identities Trigonometric System Example Trigonometry Identity Review/Fun Trigonometry word problems Unit Circle Definition of Trig Functions Using Trig Functions Suggest topic Trigonometry Inserta este menú en tu sitio