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Mathematics, 16.10.2019 03:20 AbbyNeil

Chronineans lose 150 nm of enamel from their central incisors (front teeth) each year. a new drug promises to reduce the loss by 23+_nm +_ 4nm.

a. how many chronineans are needed to test the effectiveness of the drug?

b. how effective would you say that the drug is?

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