# Tutorials

These tutorials are written by experienced educators, all of whom also offer private tutoring lessons. Get the help you need, whether through these tutorials or through private tutoring lessons.

Test Prep (12)

Math (53)

Pre-Algebra (9)

Algebra 1 (14)

Algebra 2 (10)

Geometry (4)

Trigonometry (3)

Calculus (9)

Statistics (1)

Pre-Calculus (3)

English (44)

Consulting (6)

## Pythagorean Theorem

the pythagorean thoerem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. The theorem can be written as an equation relating the lengths of the sides a, b and c, often called the “Pythagorean equation”: A^2 + B^2…

## Reducing Redundancy

One of the most important lessons a writer can learn is how to write simply and clearly. This sounds…well simple, but it is one of the hardest parts of writing. Mark Twain once said, “If I had more time, I would have written a shorter letter.” It is difficult to say a lot with a…

## Italics vs Quotes

When it comes to titles of things, when do you use italics, underlines, and quotes? Here’s a quick way to remember.

## Quadratic Formula

The quadratic formula is a life-saver when finding the value(s) for a variable given a complex equation. The formula itself may seem overwhelming, but the process is as simple as plugging in the numbers that are given to you from the original equation into the quadratic formula.

## GRE algebra practive question and solution

This is a problem used to prepare for the quantitative reasoning section of your GRE.

## Multiplication of Real Numbers

What are the rules for Multiplying Real Numbers? 1. Positive x Positive = Positive 2. Negative x Negative = Positive 3. Positive x Negative = Negative 4. Negative x Positive = Negative These rules apply to all Real Numbers – Whole Numbers; Decimal Numbers; Fractions

## Understand Your Audience

Communication is a two-way exercise. Without knowing something about your readers you’ll rarely get your ideas across. What are their goals and priorities? What pressures do they face? What motivates them? The most important things to realize about all readers – especially in business – are: • They are busy • They don’t necessarily feel…

## Air Traffic Control System Based on Low Elevation Orbit (LEO) Satellite Constellation

Air navigation currently is insured by the Secondary Surveillance Radar SSR located on the ground. Satellite systems are a valid alternative system to cover wide areas on the earth and to provide broadband communications to mobile and fixed users. In this paper, a low-Earth orbit satellite constellation is presented. A novel hierarchical and distributed QoS…

## Poetry…no rhyme or reason.

Roses are red, violets are blue. Sugar is sweet and so are you. Now THAT’S a poem! It rhymes and gets right to the point. All poetry should be like that, right? Well, I have a feeling that many of the greatest poets would disagree, vehemently. But there are many that begin their journey with…