# solve   122 videos

• #### Age Word Problems

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems about the ages of two people.

age system of equations substitution
• #### Sum of Digits

##### AlgebraWord Problems Using Systems of Equations

How to solve a problem when asked to switch the digits of a 2-digit number.

sum digits word problem
• #### Parallelogram Properties

##### GeometryPolygons

How to identify all of the special properties of parallelograms and use them to solve problems.

opposite sides parallel opposite angles same side interior angles diagonals bisect consecutive angles rhombus rectangle square
• #### Trigonometric Equations that Require Factoring

##### PrecalculusAdvanced Trigonometry

How to solve a sine equation by factoring: 4 [sin(theta)]^2 = 2.

trigonometric equations factoring the unit circle principal solutions periodicity
• #### Applied Linear Equations: Investment Problem

##### PrecalculusLinear Equations and Inequalities

How to solve an interest problem when given the total amount deposited.

word problem investment interest
• #### Applied Linear Equations: Tax Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a word problem about finding the tax on a purchase.

word problem tax
• #### Indefinite Integrals

##### CalculusAntiderivatives and Differential Equations

How to solve an indefinite integral using the properties of indefinite integrals.

indefinite integral antiderivative antidifferentiation differentiation
• #### Complicated Indefinite Integrals

##### CalculusAntiderivatives and Differential Equations

How to solve complex indefinite integral using the properties of indefinite integrals.

indefinite integral antiderivative antidifferentiation differentiation
• #### Position, Velocity and Acceleration

##### CalculusAntiderivatives and Differential Equations

How to solve position, velocity and acceleration problems using differentiation equations.

differential equations derivatives position velocity acceleration
• #### Applied Linear Equations: Investment Problem

##### Algebra 2Linear Equations

How to solve an interest problem when given the total amount deposited.

word problem investment interest
• #### Applied Linear Equations: Tax Problem

##### Algebra 2Linear Equations

How to solve a word problem about finding the tax on a purchase.

word problem tax
• #### Trigonometric Equations that Require Factoring

##### TrigonometryAdvanced Trigonometry

How to solve a sine equation by factoring: 4 [sin(theta)]^2 = 2.

trigonometric equations factoring the unit circle principal solutions periodicity
• #### Finding Maximum and Minimum Values

##### PrecalculusPolynomial and Rational Functions

How we define optimization problems, and what it means to solve them.

optimization problems quadratic functions parabola vertex
• #### Rate Word Problems

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems involving rates of travel, possibly including wind or water current.

rate ratio d=rt word problem system of equations
• #### Work Word Problems

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems when 2 people are doing a work job together.

ratio word problem system of equations work
• #### Percent Concentrations

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems about mixing two liquids with different percent concentrations.

percent concentration mixture
• #### Angles in Semicircles and Chords to Tangents

##### GeometryCircles

How to prove that an angle inscribed in a semicircle is a right angle; how to solve for arcs and angles formed by a chord drawn to a point of tangency.

inscribed angle semicircle tangent chord intercepted arc
• #### Cramer's Rule

##### PrecalculusSystems of Linear Equations and Matrices

How to solve a system of two linear equations with two unknowns using Cramer's rule.

systems of linear equations Cramer's rule determinant coefficient matrix
• #### Applied Linear Equations: Mixture Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a mixture problem when the size difference between the two containers is known.

word problem mixture
• #### Applied Linear Equations: Collection Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a word problem about how many dimes and quarters it takes to make a certain denomination.

collection change coins dimes quarter word problem denomination

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