Problem: Identify the exact numbers in this list. Select all that apply. (a) 56.00 s (a time measured by a stopwatch) (b) 4 choices (the number of choices in this list) (c) 2.54 cm (the number of centimeters in exactly 1 in) (d) 3 lbs (the weight of an object measured on a scale)

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Exact numbers are defined to be definite and usually expressed in whole numbers. 

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Problem Details

Identify the exact numbers in this list. Select all that apply. 

(a) 56.00 s (a time measured by a stopwatch) 

(b) 4 choices (the number of choices in this list) 

(c) 2.54 cm (the number of centimeters in exactly 1 in) 

(d) 3 lbs (the weight of an object measured on a scale)

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Significant Figures concept. You can view video lessons to learn Significant Figures. Or if you need more Significant Figures practice, you can also practice Significant Figures practice problems.

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Based on our data, we think this problem is relevant for Professor Idwasi's class at Tulsa Community College.