There is another symbol, the minus-plus sign (â). It is generally used in conjunction with the  Â±  sign, in such expressions as x Â± y â z, which can be interpreted as meaning  x + y â z  or/and  x â y + z , but not  x + y + z  nor  x â y â z . In engineering the sign indicates the tolerance, which is the range of values that are considered to be acceptable, safe, or which comply with some standard, or with a contract. 2  In chemistry the sign is used to indicate a racemic mixture.
1 The cost of completing an undergraduate degree at Capella University is $345 per credit-hour for upper-level courses and $275 for lower-level courses. 2  Most degree programs consist of an even mix of both, therefore the average cost per credit-hour at Capella can be extrapolated as $310 per credit-hour. (To learn more information on this school, click here). 2  Devry University-Offering an even mix of online and on-campus degree programs, Devry University has a hand in many different fields. 3  The cost of attending undergraduate classes is $597 per credit-hour for the first 11 credit-hours and $360 for each one after that.
This chart is meant as a planning tool and provides students a good faith estimate of costs. Tuition and fees are subject to change on an annual basis. This estimate does not include housing, food, transportation and other personal costs. Tuition for 2016/2017 academic year = $719 per credit hour.