Mathematics, 25.11.2019 23:31 thompsonjodi9638
Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart rate, r, in beats per minute, can be approximated by the formulas where a represents the person’s age. if the desirable heart rate for a woman is 130 beats per minute, how old is she? a. 84 years old b. 57 years old c. 37 years old d. 20 years old
answer is d
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Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart r...
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