Grading for Numeric AnswersToleranceSome numeric answers to questions need to be exact. For example, the answer to the question "How many days are in a week?" must be exactly 7.In general though, numeric answers are graded as correct if they fall within an acceptable range (or tolerance) of the official correct answer. For example, if the answer to a numeric problem with a tolerance of 2% was 105, then entering any value between 103 and 107 would begraded as correct, as shown in the region shaded green below. The typical grading tolerance in Mastering is 2-3%, although this value may vary (e.g. more lenient) depending on the particular problem.100105Properly-rounded110answer+/- 2%Significant FiguresWhile Mastering does not directly grade your answer based on the number of significant figures it contains, the tolerance mentioned above is centered around the properly-rounded answer (as opposed to the full-precision answer). In some problems you will be explicitly told howmany significant figures your answer should contain. You may find that entering extra significant figures than required often causes your answer to still fall within the accepted tolerance and thus graded as correct. However, there are problems where not rounding properlymay cause your answer to fall outside the accepted tolerance, so it's important to follow the general rules for significant figures, as the following example illustrates.Suppose you are asked to find the area of a rectangle that is 3.1 cm wide and 4.4 cm long. The full-precision answer from your calculator would be 13.64 cm?, although given the rules for significant figures, this answer should be rounded to two significant figures before beingentered, or 14 cm?, If you wereanswer, although you would not be deducted any points.o enter 13.64 cm², it would not be graded as correct since this value falls outside the 2% tolerance of the properly-rounded answer of 14 cm?. Instead, you would receive feedback from Mastering telling you to check the rounding of your finalPart AWhat is the area of a rectangle that is 3.1 cm wide and 4.4 cm long? Enter the full-precision answer first to see the corresponding feedback before entering the properly-rounded answer. (You do not need to enter the units in this case since they are provided to the right of theanswer box).cm?SubmitRequest AnswerPart B Complete previous part(s)Part C Complete previous part(s)Part D Complete previous part(s)

Answered: Image /qna-images/answer/b10c8f6a-5d69-458b-9022-a49f586cf216.jpg

What is the area of a rectangle that is 3.1 cm wide and 4.4 cm long? Enter the full-precision answer first to see the corresponding feedback before entering the properly-rounded answer. (You do not need to enter the units in this case since they are provided to the right of the answer box). cm2 Submit Request Answer

What is the area of a rectangle that is 3.1 cm wide and 4.4 cm long? Enter the full-precision answer first to see the corresponding feedback before entering the properly-rounded answer. (You do not need to enter the units in this case since they are provided to the right of the answer box). cm2 Submit Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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