
Concept explainers
Running records. According to at least one study, the world record in any running race can be modeled by a linear equation. In particular, the world record R, in minutes, for the mile run in year x can be modeled by
Use this model to estimate the world records for the mile run in 1954, 2000, and 2015. Round your answers to the nearest hundredth of a minute.

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Chapter R Solutions
Calculus and Its Applications Plus MyLab Math with Pearson eText -- Access Card Package (11th Edition) (Bittinger, Ellenbogen & Surgent, The Calculus and Its Applications Series)
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