Equations

作文地带导读：The center is given in the image: (–2, –1). All you need to finish the formula is the radius. We determine this by finding the distance from the center and the point, (2, –4), pictured on the circle:　　The radius of the ci...

Important other Equations equation Graphs

作文地带导读：By subtracting the second equation from the first:　　Some test-takers might have seen this problem and been tempted to immediately start trying to solve for x and y individually.The question asks you to solve for y, which mea...

of Equations Systems solve equation

作文地带导读：For some questions on the Math IC test, you’ll need to translate the problem from a language you’re used to—English—into a more useful, albeit less familiar language. We’re talking about the language of math, of course, a...

we writing is Equations marbles

作文地带导读：). The idea is to “undo” everything that is being done to the variable so that it will be isolated in the end. Let’s look at an example:　　In this equation, the variable x is being squared, multiplied by 3, added to 5, etc...

like Equations Manipulating Variable sides

作文地带导读：Remember that halogen is diatomic and that all potassium compounds are soluble. The resulting compound is also soluble, so K+ is a spectator and is left out of the final equation....

Equations equation net Compounds Ionic

作文地带导读：You may remember that the law of conservation of mass says that matter is neither created nor destroyed during a chemical reaction. This means that all chemical……...

Equations Chemical aluminum reagent Balancing