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Law of Sines and Law of Cosines
Law of Sines and Law of Cosines The Law of Sines and the Law of Cosines are special trig rules that can be used on non-right (acute or obtuse) triangles. This guide summarizes the [...]
Log Rules and Practice
Log Rules and Practice Are you learning about and practicing Log Rules? Logarithms "undo" Exponents, and are thus a vital concept in Math and Science. This guide reviews the 7 Log Rules and how [...]
Simplifying Exponential Expressions
Simplifying Exponential Expressions Most math and science curriculum requires simplifying exponential expressions are a component. Despite the various ways exponents are used, there are only 8 Exponent Rules you need to know. This guide [...]
Dangling Modifiers
Dangling Modifiers Dangling modifiers make it so that the subject and its verb or adjective do not "match." This often leads to confusing and easily misinterpreted sentences. Since the purpose of writing and speaking [...]
Past Perfect and Present Perfect Tenses
Past Perfect and Present Perfect Tenses The conjugation of verbs can be confusing in any language, especially tenses like past perfect and present perfect. This guide will explain the differences between these tenses, when [...]
General Essay Outline
General Essay Outline There are many different types of essays you may be asked to write: Narrative, Descriptive, Expository, Persuasive, Compare & Contrast, and others. While each type of essay has its own requirements, [...]
Chemistry: Molecular Geometry
Chemistry: Molecular Geometry In Chemistry, we learn about Molecular Geometry. The VESPR Theory allows us to predict models of molecular shapes, which thus helps us better understand the behaviors and interactions of molecules. Use [...]
English Grammar: “Who” versus “Whom”
English Grammar: "Who" versus "Whom" When learning English grammar, you need to know when to use "who" versus went to use "whom." Who should I vote for? Whom should I vote for? … Which [...]