The Tutoring Center, Sammamish WA

Tutoring in Sammamish, Washington.

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09/21/2015

Remember These Great Math Tips

Here are a few mathematical formulas that come in handy when you have them memorized.

Quadratic Formula

Solve any quadratic equation in the form ax^2+bx+c=0 with this formula. For those formulas that are difficult to find the difference of squares, or if you are in a rush on an exam, the quadratic formula will be very nice to know.

Statistical Combinations

To find the total possible different combinations of different elements, simply multiply them all together. For example, if there are 4 appetizers, 5 entrees, and 3 desserts on a menu, there are 4*5*3=60 different possible combinations.

Circle Formulas

The area of a circle is the square of the radius times π. Multiply π times the diameter, or twice the radius, of a circle. When working with arcs, just remember that an arc is a percentage of a circle. Since there are 360 degrees in a circle, first calculate the percentage of the whole circle the arc represents. If the arc is 90 degrees, it is 90/360=1/4 or 25%. Multiply the area or circumference of the whole circle by this percentage to find the area or circumference of the arc.

Distance Formula

If you know your Pythagorean theorem , this equation will be intuitive. To determine the distance between two points, you can make a right triangle from them. square each side and then take the square root of the sum to obtain the length of the hypotenuse.

For Tutoring in Sammamish

If you would like additional help with math, contact The Tutoring Center in Sammamish. We offer one-to-one tutoring programs in math, reading, writing, and test preparation to students of all ages and levels. Find out more about us at our webpage and call 425-202-7306 to schedule your free diagnostic assessment today.

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