The video explains the use of standard form in chemistry to express very large or very small numbers in a more manageable way for calculations. It provides examples of converting numbers to standard form and demonstrates how to multiply...

Learn how to add/subtract vectors. Vectors can be added, subtracted and multiplied. To add or subtract two or more vectors, we simply add each of the corresponding components of the vectors.

In this lesson, students will learn how to create equivalent fractions by multiplying both the numerator and denominator of a fraction by the same number. They will explore this concept through visual representations on number lines.

Arithmetic operations with fractions can be visualized using the number line. This chapter starts by adding fractions with the same denominators and explains the logic behind multiplication of fractions.

In this video we are going to look at how to do calculations with standard form.



When adding and subtracting numbers in standard form, we need to write the numbers out into ordinary numbers, do the sum and then turn the...

This is a collection video on gravity, which explains the relationship between gravity, weight, and mass. The video defines gravity as a phenomenon causing attraction between all masses and shows how it affects different objects...

In this video lesson, students learn how to solve mixed number multiplication problems using pictures and the standard algorithm. They are reminded of key concepts such as multiplication as equal groups, algorithms for multiplying whole...

Scientific notation allows us to more easily express very large or very small numbers encountered in engineering and science. Using exponents, we can convert standard decimal numbers into scientific notation and vice versa.

This video is a review of basic arithmetic for the purpose of solving problems on the quantitative reasoning section of the GRE revised General Test. This video covers the basics of fractions. Topic covered: division of fractions,...

👉 Learn how to expand a binomial using binomial expansion. A binomial expression is an algebraic expression with two terms. When a binomial expression is raised to a positive integer exponent, we usually use the binomial expansion...

ACT SAT Prep determine the number of people from a whole group

Learn how to add/subtract vectors. Vectors can be added, subtracted and multiplied. To add or subtract two or more vectors, we simply add each of the corresponding components of the vectors.

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the...

A look at why G Sharp and A flat historically were two different pitches

👉 Learn how to solve and graph compound linear inequalities. A compound inequality is an inequality having more than 1 inequality sign. To solve compound inequalities, we use inverse operations, applying the inverse operation to each...

👉 Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract fractions having the same denominator, we add the numerators and retain the (common) denominator. This is...

In this video, students learn how to simplify expressions that involve negative terms by distributing the negative term. The teacher provides examples and explains common mistakes that students make.

Solutions to Problem 22.

Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the...

Given the radius or diameter and height, how do you calculate the area of a cylinder? <br/>
Cylinders, Cones and Spheres, Part 2

In this video I show you how to add, subtract, multiply and divide fractions by working through 52 different examples. I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those...

👉 Learn how to multiply mixed numbers. To multiply mixed numbers, we first convert the mixed numbers to improper fractions and then multiply the resulting mixed numbers by multiplying the numerator by the numerator and the denominator by...

The video is a lecture presentation on sketching higher order polynomials. The presenter begins by recapping the general trends for even and odd powered graphs. Then, they introduce a general strategy for sketching any higher order...

👉 Learn how to multiply numbers written in scientific notations. Scientific notation is a convenient way of writing very large or very small numbers. A number written in scientific notation is of the form a * 10^n where a is the first...