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Growth of nails

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1) In a study it was found that the average rate of a toe nail growth was 1.6 mm per month. Using this result work out how many meters a toe nail grows in one year to an appropriate number of significant figures. Express answer in scientific notation.

2) In the same study it was found that on average the fingernail grew about 2.15 times faster then a toe nail. To an appropriate number of Significant figures, work out how many nanometers an average finger nail grew in one day.

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Solution Summary

The solution helps explore the statistics of growth of toe nail in one year and growth of fingernail in one day.

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(1) Growth of a toe nail in 1 month = 1.6 mm = 0.0016 m

Growth in 1 year (12 months) = 0.0016 x 12 = 0.0192 m

Since 0.0016 has 2 ...

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