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General Chemistry

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Patrick

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Genetics

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New to chemistry? Atoms, elements, and reactions are broken down into simple steps to build a strong foundation for success in class and labs.

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Want to apply calculus to real-world business problems? Rates, optimization, and economic models are explained in simple terms for practical use.

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From probability to hypothesis testing, statistics concepts are explained step-by-step to build problem-solving skills and exam readiness.

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Struggling with data analysis, probability, or regression? Statistics is connected to real-world business decisions to make concepts easier to apply.

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From proteins and enzymes to metabolism and pathways, biochemistry concepts are connected across chemistry and biology for deeper understanding.

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Need help with GDP, inflation, or monetary policy? Macroeconomics is simplified to highlight the big picture and boost exam performance.

Macroeconomics

Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

Personal Health

From macronutrients and vitamins to metabolism and diet planning, nutrition concepts are explained clearly and connected to real-life examples.

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Learn how medical terms are built and what they mean by breaking them into simple parts. This course helps you understand and use the language of healthcare with confidence.

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Explore how human societies are organized, how social relationships shape behavior, and how cultural, economic, and political forces influence everyday life.

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Learn the toughest concepts covered in Beginning & Intermediate Algebra with step-by-step video tutorials and practice problems by world-class tutors

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Introductory Biology

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Algebra & Trigonometry

From logic and problem solving to voting systems, personal finance, and statistics, liberal arts math topics are explained step-by-step to build confidence with real-world mathematical thinking and strong preparation for quizzes and exams.

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From logic and problem solving to ratios, finance, and statistics, quantitative reasoning concepts are explained step-by-step to build confidence applying mathematics to everyday situations, workplace contexts, and practical decision-making.

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From whole numbers and integers to equations and graphing, develop a strong understanding of foundational math concepts with clear, step-by-step support every step of the way.

Prealgebra

Master the fundamentals of algebra as you solve equations, analyze patterns, and work with mathematical relationships through guided, step-by-step instruction.

Prealgebra & Beginning Algebra

From foundational arithmetic through advanced algebraic concepts, develop the skills to solve increasingly complex mathematical problems with comprehensive, step-by-step support.

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The figure shows a 250 g slab placed on a 950 g frictionless wedge structure. The whole assembly rests on level ground. Determine the normal reaction experienced by the wedge if the slab was sliding downwards on the inclined structure.