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Is a Rectangle a Parallelogram? Or Is a Parallelogram a Rectangle?

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Andrew Lee
June 24, 2021 Both rectangles and parallelograms are quadrilaterals, which means that they are polygons with four sides. But is a rectangle a parallelogram? Or is a parallelogram a rectangle? Here's a review of the different properties of both parallelograms and rectangles.

A parallelogram is a quadrilateral that has:

• Two pairs of parallel sides
• Two pairs of opposite sides that are congruent

A rectangle is a quadrilateral that has:

• Four right angles
• Two pairs of opposite sides that are congruent

A rhombus is a quadrilateral that has:

• Four sides of equal length
• Two pairs of equal opposite angles

What's the Difference Between Expressions and Equations?

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Jana Russick
June 23, 2021 Expressions and equations are terms you've probably heard in real-life, most often in a high school math class. But do you know the real difference? They both can have numbers and variables, but there’s one key difference. Let's explore what this is and show you how to simplify and evaluate expressions and equations.

How to Work With Absolute Value Inequalities, Step by Step

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Andrew Lee
June 23, 2021 You might already be familiar with solving inequalities, but what happens when you add an absolute value expression into the mix? Let’s go through the steps it takes to solve absolute value inequalities.

The absolute value symbol looks like this: |a|, where a is any real number. The absolute value sign means that the expression is no longer just a, but the distance a is from 0 on a number line.

A quick example: |2| = 2, because positive 2 is a distance of 2 from 0 on a number line.

Similarly, |-2| = 2, because negative 2 is also a distance of 2 from 0 on a number line.

What Are Like Terms, and How Do You Combine Them?

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Jana Russick
June 13, 2021 What are like terms? They are terms whose variables and exponents have the same value. If two terms have different variables or different exponents, they are called unlike terms. Here are some examples of like and unlike terms:

Like terms: Unlike terms: Let's break down the defining features of like terms and show you how to combine them.

How to Write a Fraction as a Decimal: 2 Simple Methods

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Jana Russick
June 10, 2021 If you’re looking for the easiest solution for how to write a fraction as a decimal, we’re here to help. Here, we’ll guide you through three simple ways to convert fractions into decimals.