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Unit Circle

A unit circle is a circle with the radius of 1. A unit circle has radians, degrees, and coordinates.

Prime Factorization

Prime factorization is factoring out a number of its prime factors. A primary number is a number times by 1 and itself. A composite number has more than two factors. 1 can not be a prime factor since it only has one factor, which is only 1. For example: 12=2*2*3 28=2*2*7 18=2*3*3

Quadratic-Linear Equations

When we do quadratic-linear equations, it is the same as systems of linear equations. We have to apply the same principle of substituting y or x, depending on the linear equation itself. We can do without substituting and rather treat the equations as equations to be done algebraically. We have to find the intersecting coordinates…

Geometry| Solid Geometry| Level 4

This is question 8 from Lesson 20 of my book The Scholarly Unicorn’s SAT Math Advanced Guide. Topic: Geometry Subtopic: Solid Geometry Level: 4

AP US History

Some presidents have scandals on them that can tarnish the presidency in more ways than one.


In terms of the difficulty of between cell biology and ecology on the Living Environment Regents, generally, ecology questions are easier. There is energy , transferred, and stored, and it is important to know this to understand about how the biotic factors interact. There are energy pyramids, food chains, and even more complex, food webs.

How to Write for the Web: Part 2

In How to Write for the Web: Part 1, we mastered using the inverted pyramid, writing in short paragraphs, making your content easily scannable, and taking the proper amount of time to edit. But there’s still so much to learn, my young grasshoppers. So join me for part 2 of How to Write for the…

Find the X

An equation is given below. 4(x-7)= 0.3(x+2) +2.11

Radians into Degrees

Most Algebra 2 Common Core Regents will have questions from the original Algebra 2 Regents exams, so it is beneficial to review them as well. One of the topics has to deal with radian measures.

Systems of Equations

2x+4y=10 x+y=3