Brian McLogan
Solving a proportion by cross multiplication with decimals
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Simplifying an expression with fractional powers to take the derivative
👉 Learn how to find the derivative of a function using the power rule. The derivative of a function, y = f(x), is the measure of the rate of change of the function, y, with respect to the variable x. The process of finding the derivative...
Brian McLogan
Solving Exponential equations
👉 Learn how to solve exponential equations in base e. An exponential equation is an equation in which a variable occurs as an exponent. e is a mathematical constant approximately equal to 2.71828. e^x is a special type of exponential...
Brian McLogan
How to find the probability between two mutually exclusive events
👉 Learn how to find the probability of mutually exclusive events. Two events are said to be mutually exclusive when the two events cannot occur at the same time. For instance, when you throw a coin the event that a head appears and the...
Brian McLogan
Learn how to graph a quadratic in standard form using a table and axis of symmetry
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Finding the quotient of two mixed numbers
👉 Learn how to divide mixed numbers. To divide mixed numbers, we first convert the mixed numbers to improper fractions. After we have converted the mixed numbers to improper fractions, we can then multiply the first fraction by the...
KnowMo
Math Basics: Expressing Quantities as Fractions and Percentages
The video explains how to express quantities as fractions or percentages of each other. The instructor uses examples to demonstrate the process of simplifying fractions, calculating fractions of amounts, converting fractions to...
Brian McLogan
Dividing a whole number by a fraction
👉 Learn how to divide fractions. To divide two fractions, we multiply the first fraction by the reciprocal of the second fraction. (The reciprocal of a fraction is swapping the positions of the numerator and the denominator). It is...
KnowMo
Converting Decimals into Fractions
This is a lecture video that explains how to convert decimals into fractions. The presenter begins by defining what fractions are and pointing out the importance of understanding place value. They then go on to list common decimal to...
Why U
Pre-Algebra 20 - Converting Repeating Decimal Numbers to Fractions
Decimal numbers with an infinitely repeating sequence of digits after the decimal point can be converted into fractions. This chapter explains why.
Brian McLogan
Adding two rational monomials
👉 Learn how to add and subtract rational expressions by applying the rules of exponents. When adding and subtracting rational expressions we need to have common denominators. To obtain common denominators we will need to multiply the...
Brian McLogan
What does the discriminat tell us about our zeros graphically
👉 Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of...
Brian McLogan
Graphing a horizontal line by using a table of values
👉 Learn how to graph linear equations with one variable. When given a linear equation with one variable in the form x = a or y = c, the two forms of linear equations results in a vertical and horizontal lines respectively. The graph of...
Math Fortress
GRE Arithmetic: Fractions (Part 1 of 5)
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. Topics covered include: The definition of a...
Brian McLogan
Solving Exponential equations
👉 Learn how to solve exponential equations in base e. An exponential equation is an equation in which a variable occurs as an exponent. e is a mathematical constant approximately equal to 2.71828. e^x is a special type of exponential...
Brian McLogan
When given a geometric sequence,determine the 8th term by using the explicit formula
👉 Learn how to find the nth term of a geometric sequence. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. A geometric sequence is a sequence in which...
Brian McLogan
Creating same base with negative exponents to solve an equation
👉 Learn how to solve exponential equations involving fractions. An exponential equation is an equation in which a variable occurs as an exponent. To solve an exponential equation, we make the base of both sides of the equation to be...
Brian McLogan
How to subtract fractions with unlike denominators and negative answers
👉 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...
KnowMo
Adding Mixed Numbers: Two Methods
The video discusses two methods for adding mixed numbers and provides examples of how to apply both methods. The first method involves adding the whole numbers and fractions separately, while the second method involves converting the...
Brian McLogan
Learn how to add two functions rational
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions...
Curated Video
Using Scale Factors to Find the Area of Scale Drawings
In this video, the teacher explains how to use a scale factor to find the area of a scale drawing. They demonstrate how multiplying the length and width of a figure by a scale factor does not generate the scaled area. Instead, they...
Curated Video
Solving Word Problems with Fractions and Whole Numbers using Repeated Addition
In this video, students learn how to solve word problems involving multiplying a fraction and a whole number using repeated addition. The teacher explains the commutative property and the importance of understanding fractions as parts of...
Brian McLogan
Algebra 2 - How to add two rational monomials by finding the LCM ( 3y/2x^3) + (5z/8xy^2)
👉 Learn how to add and subtract rational expressions by applying the rules of exponents. When adding and subtracting rational expressions we need to have common denominators. To obtain common denominators we will need to multiply the...
KnowMo
Introduction to Probability and Calculating Probability
This video is a lesson on probability, which explains the concepts of likelihood or chance of an event happening using fractions, decimals, and percentages. It also discusses how to count outcomes and calculate probability using the...