Circle Calculator Enter any value to calculate the others Radius mmcmmkminftydmi Diameter mmcmmkminftydmi Circumference mmcmmkminftydmi Area mm²cm²m²km²in²ft²yd²mi² Reset Found a bug? Let us know! Knowing how to solve for the area, circumference, diameter, and radius of a circle is an important math concept to understand. Take a look at the examples below to see how … Read more
The Postsecondary Education Readiness Test (PERT) is administered by the state of Florida to adequately assess your academic skills in mathematics, reading, and writing. How well you score on the exam will determine your placement into appropriate college courses. Click the “Start Test” button above to begin our free PERT practice test! These practice questions … Read more
The ACCUPLACER® placement tests are designed to assist with the accurate placement of students into classes that appropriately match their skill level. The test content is reflective of relevant texts and tasks that would be encountered within a first-year college course. This page covers what information these placement tests cover, the number and type of … Read more
Use this calculator to help you quickly determine any volume of a sphere. Enter the radius of the sphere: Calculate Volume Found a bug? Let us know! Knowing how to solve the volume of a sphere is an important math concept to understand. To find the volume, all you need is the radius! Remember, the … Read more
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A polynomial is an expression that shows sums and differences of multiple terms made of coefficients and variables. A polynomial expression with zero degree is called a constant. A polynomial expression with a degree of one is called linear. A polynomial expression with degree two is called quadratic, and a polynomial with degree three is … Read more
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The Quantitative Reasoning test on the GRE assesses your knowledge of basic arithmetic, algebra, geometry, and data analysis. To help you prepare for this section of the GRE, this page contains everything you need to know, including what topics are covered, how many questions there are, and how you can study effectively. Click “Start Test” … Read more
The square root of a number is a number that when multiplied by itself, results in the original number. For example, , therefore, the square root of is . The radical symbol, , is used to represent square roots. The two statements, “What is the square root of ?” and “What is ?” are read … Read more