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Textbook Homework Help Subjects Hotmath textbook solutions are free to use and do not require login information Middle Math Series Pre-Algebra Algebra 1 Geometry Algebra 2 Science Trigonometry Precalculus College Algebra Calculus Concept Review Topics A B C D E F G H I J K L M N O P Q R S T Y V W X Y Z A AA Similarity AAS Postulate Absolute Value Accuracy and Error Absolute Value of a Complex Number Absolute Value Functions Absolute Value Inequalities Accuracy and Error Adding and Subtracting Complex Numbers Adding and Subtracting Decimals Adding and Subtracting Fractions with Like Denominators Adding and Subtracting Fractions with Negatives Adding and Subtracting Fractions with Unlike Denominators Adding and Subtracting Fractions Adding and Subtracting Matrices Adding and Subtracting Negatives Adding and Subtracting Rational Expressions with Like Denominators Adding and Subtracting Rational Expressions with Unlike Denominators Adding and Subtracting Vectors Adding Fractions with Like Denominators Adding Fractions with Unlike Denominators Adding Fractions Adding and Subtracting Polynomials Addition Rule of Probability Addition: Whole Numbers Additive Inverse Adjacent Angles Adjoint of a Matrix Advanced Factoring Alternate Exterior Angles Alternate Exterior Angles Theorem Alternate Interior Angles Alternate Interior Angles Theorem Altitude of a Triangle Amplitude and Period of Sine and Cosine Functions Angle Addition Postulate Angle-Angle Similarity Angle Bisector Theorem Angle Bisector Angle of Intersecting Chords Theorem Angle of Intersecting Secants Theorem Angle of Rotation Angle Sum Theorem Angles of Elevation and Depression Angles Arcs Area Area of a Circle Area of a Triangle Area Problem Solving Areas of Regular Polygons Arithmetic Sequences Arithmetic Series ASA Postulate Associative Property Associative Property of Matrices Asymptotes Augmented Matrices Axiom Axis of Symmetry of a Parabola B Bar Graphs Base (Exponential Notation) Base (Logarithms) Base (Number Systems) Basic Operations Basic Trigonometric Identities Biconditional Statement Big and Small Numbers Binary Numbers Binomial Probability Binomials Binomial Series Binomial Theorem Bisectors in a Triangle Box and Whisker Plots C Capacity Cartesian Plane Center and Variation of Data Center of Rotation Central Angles Centroid Choosing Appropriate Units of Measure Chord Circle Circle Graphs Circles Inscribed in Squares Circumcenter Theorem Circumference Cofunction and Odd-Even Identities Collinear Points Combinations Combined Variation Combining Like Terms with Exponents Combining Like Terms Common Difference Common Ratio Commutative Property Comparing and Ordering Integers Comparing Decimals Comparing Fractions Comparing Functions Comparing Linear, Polynomial, and Exponential Growth Comparing Quantities Compatible Matrices Complement of an Event Complementary Angles Completing the Square Complex Numbers Components of a Vector Composite Numbers Composition of Functions Compound Events Compound Inequalities Compound Interest Conditional Probability Conditional Statements Cone Congruent Angles Congruent Figures Congruent Segments Congruent Tangents and Circumscribed Polygons Congruent Triangles on the Coordinate Plane Congruent Triangles Conic Sections and Standard Forms of Equations Conjugates Conjunction Consecutive Interior Angles Theorem Consistent and Dependent Systems Constant Function Constant of Variation Converse, Inverse and Contrapositive Converse of Isosceles Triangle Theorem Converse of Pythagorean Theorem Convert between Systems Convert Units of Area and Volume Converting Fractions to Decimals Converting Fractions to Percent Converting Non Repeating Decimals to Fractions Converting Repeating Decimals to Fractions Coordinate Proofs Coplanar Correlation and Causal Relation Corresponding Angles Corresponding Angles Postulate Cosine Function Cosine Coterminal Angles Counter Example Cramer's Rule Cross Products Cross Sections Cubic Functions Customary Units Cylinder D Decimals an Introduction Decimals, Adding and Subtracting Decimals, Multiplying and Dividing Decimals, Terminating and Repeating Decimals, Rounding Decimals and Percentages Degree (of a Monomial) Degree (of a Polynomial) Degree (of a Vertex) Degree Measure of an Angle Degree to Radian Measure Denominator Dependent Events Descartes Rule of Signs Describing the Graph of a Function Determinants Developing a Probability Distribution from Empirical Data Diagonals of Parallelograms Diameter Difference of Squares Different Bases Dilation Direct and Inverse Variation Direct Variation Directrix Discriminants Disjunction Distance between Parallel Lines Distance Formula in 3D Distance Formula Distributive Property of Matrices Distributive Property Dividing by a Fraction Dividing Complex Numbers Dividing Decimals Dividing Fractions Dividing Polynomials Dividing Rational Expressions Divisibility Tests Division Whole Numbers Domain and Range of Exponential and Logarithmic Functions Domain and Range of Rational Functions Domains Domain and Range Double-Angle and Half-Angle Identities E e (the Number) Eccentricity Ellipse End Behavior of a Function Endvertex (Graph Theory) Equation of a Circle Equation of a Plane Equivalent Expressions Equivalent Fractions Equivalent Ratios Evaluating Expressions Even and Odd Functions Expected Value Experimental Probability Exponent Tables and Patterns Exponential Decay Exponential Functions Exponential Growth Exponential Regression Exponential to Logarithmic Form Exponents Exterior Angle Inequality Exterior Angle Theorem Extraneous Solutions F Factor Theorem Factorials Factoring Factoring: a ≠ 1 Factoring: b & c Positive Factoring: b Negative Factoring: c Negative Factoring by Grouping Factoring Monomials Factors Falling Objects Fibonacci Numbers Finding Arc Lengths Finding the Area of a Triangle Using Sine Finding the Equation of a Line from Its Graph Finding the Equation of a Parabola given Focus and Directrix Finite Differences Fitting Equations to Data Fitting Linear Equations to Data Focus of a Parabola Focus Formulas 45-45-90 Triangles Fraction Operations Fractions Frequency Distributions Functions Describing Behavior Functions: Graphs and Intersections Functions Fundamental Counting Principle Fundamental Theorem of Algebra G Gathering Like Terms Geometric Mean Geometric Probability Geometric Sequences Geometric Series Golden Ratio Golden Rectangle Graphing Exponential and Logarithmic Functions Graphing Exponential Functions Graph Theory Graphing Cosine Fu...