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This page provides a list of educational videos related to Equations with Parentheses. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Equations with Parentheses.
Systems of Inequalities | MathHelp.com
By MathHelp.com
Here we’re asked to write the equation of a circle with center (-2, 7) and radius 5. Remember from the previous example that the formula for the equation of a circle is (x – h)^2 + (y – k)^2 = r^2, where (h, k) is the center of the circle, and r is the radius. And in this problem, since we’re given that the center is (-2, 7), which represents (h, k), and radius is 5, which represents r, we simply plug these values into the formula. And we have x – parentheses -2 squared….+ y – parentheses -7 squared…= parentheses 5 squared. Notice that I changed the parentheses that were in the original formula to brackets so that we wouldn’t have too many sets of parentheses when plugging our values into the formula. Finally, we simplify inside the brackets. x minus a negative 2 simplifies to x + 2, so we have parentheses x plus 2 squared + parentheses y – 7 squared = 5 squared, or 25. Notice that I changed the brackets back to parentheses in the final answer. So the equation of a circle with center (-2, 7) and radius 5 is (x plus 2)^2 + (y minus 7)^2 = 25. Notice that the negative 2, positive 7 in our given center becomes a positive 2, negative 7 in our formula, and don’t forget to square the radius of 5 to get 25.
Geometry Concepts | MathHelp.com
By MathHelp.com
This lesson covers solving multi step equations. Students learn to solve equations that involve the distributive property by first distributing through the parentheses, then combining like terms, then solving from here. Students are also reminded to show all steps when solving equations.
High School Algebra | MathHelp.com
By MathHelp.com
This lesson covers perimeter word problems. Students learn to solve "Geometry" word problems involving perimeters of rectangles
One-Step Addition Equations | MathHelp.com
By MathHelp.com
This lesson covers number patterns. Students learn to find the next 3 terms in advanced patterns that involve figures, letters, or numbers. For example, to find the next three terms in the pattern A, Z, B, Y, __, __, __, notice that the first and third terms in the pattern, A and B, are the first two letters in the alphabet, so the fifth and seventh terms in the pattern will be the next two letters in the alphabet, C and D. And the second and fourth terms in the pattern, Z and Y, are the last letter and the second-to-last letter in the alphabet, so the sixth term in the pattern will be the third-to-last letter in the alphabet, X. So the next three terms in the pattern A, Z, B, Y, __, __, __ are C, X, and D.
Intermediate Algebra | MathHelp.com
By MathHelp.com
This lesson covers motion problems. Students learn to solve advanced "motion" word problems -- for example, riding a bike to pick up a car and driving back, or biking part of a trip and taking a boat the rest of the trip. Students should first draw a diagram to represent the relationship between the distances involved in the problem, then set up a chart based on the formula rate times time = distance. The chart is then used to set up the equation.
Solving Algebra Problems | MathHelp.com
By MathHelp.com
MathHelp.com offers Geometry basics featuring a custom Geometry course with a teacher. Perfect for homeschool Geometry or for any student needing lots of Geometry help in order to get back up to speed in class.
Multi Step Equations | MathHelp.com
By MathHelp.com
This lesson covers complementary angles. Students learn the definition of complementary and supplementary angles, as well as how to find the measures of the complement and supplement of a given angle. Students are also asked to solve word problems in the following form: "If the ratio of an angle to its complement is 2:3, find the measure of each angle."
Learning Algebra | MathHelp.com
By MathHelp.com
This lesson covers the hypotenuse leg and angle angle side theorems. Students learn the third angle theorem, which states that if two angles of one triangle are congruent to two angles of another triangle, then the third angles are congruent. Students also learn the following theorems related to congruent triangles. If two angles and the non-included side of one triangle are congruent to two angles and the non-included side of another triangle, then the triangles are congruent (Angle-Angle-Side or AAS). If the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the triangles are congruent (Hypotenuse-Leg or HL). Students are then asked to determine whether given triangles are congruent, and name the postulate or theorem that is used.
Algebra Basics: What Is Algebra? - Math Antics
By Lumos Learning
This video gives an overview of Algebra and introduces the concepts of unknown values and variables. It also explains that multiplication is implicit in Algebra.
