law of multiple proportions   118 videos

• Probability of Independent Events

Algebra 2Combinatorics

How to find the probability of independent events.

probability multiple events overlap
• Probability of Independent Events

PrecalculusTopics in Discrete Math

How to find the probability of independent events.

probability multiple events overlap
• History as Mystery

AP US HistoryAP US History Videos

Outsmart the AP U.S. History test and pick up guaranteed strategies for test success.

Multiple choice questions
• Direct Variation

Algebra 2Functions

How to define direct variation.

direct variation proportional constant of variation

• Vector Operations in 3D

PrecalculusVectors and Parametric Equations

How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions.

vectors components vector addition scalar multiplication the dot product the scalar product magnitude length three dimensions
• Spring Potential Energy

PhysicsOscillatory Motion

Understanding the spring potential law.

spring potential energy

• Exponents

Pre-AlgebraIntegers

Exponents are a short cut for writing repeated multiplication

• Solving Equations with fractions and decimals by "Clearing"

Pre-AlgebraSolving Equations and Inequalities

Solving equations with fractions by multiplying by the least common multiple

• Commutative, Associative

Pre-AlgebraProperties of Numbers

Overview of the commutative and associative properties for addition and multiplication

• Distributive

Pre-AlgebraProperties of Numbers

Introduction to the distributive property of multiplication over addition or subtraction

• Stoichiometry

ChemistryChemical Reactions

How to use stoichiometry to work with chemical equations.

stoichiometry law of conservation of mass
• Similarity Shortcuts

GeometrySimilarity

How to determine if two triangles are similar using a shortcut.

similar triangles AA SAS SSS proportion congruence
• Corresponding Parts of Similar Triangles

GeometrySimilarity

How to relate corresponding altitudes, medians and angle bisectors in similar triangles.

similar triangles altitude median angle bisector proportional
• Angle Bisectors and Opposite Side Ratios

GeometrySimilarity

How to relate the sides of an angle bisected and the lengths of the opposite side.

angle bisector opposite side ratio proportion
• Indirect Variation

Algebra 2Functions

How to define indirect variation.

indirect variation inverse proportion constant of variation
• The Distance Formula in Polar Coordinates

PrecalculusPolar Coordinates and Complex Numbers

How to derive the distance formula for polar coordinates.

polar coordinates the law of cosines triangles
• Reaction Rate Problems

ChemistryChemical Reaction Rates

How to solve reaction rate problems.

reaction rate problems rate law
• Conservation of Energy

ChemistryThermochemistry

How energy is neither created nor destroyed.

conservation energy first law of thermodynamics

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