Question: Physicians, particularly pediatricians, sometimes need to know the body surface area of a patient. For instance, they use surface area to adjust the results of

Physicians, particularly pediatricians, sometimes need to know the body surface area of a patient. For instance, they use surface area to adjust the results of certain tests of kidney performance. Tables are available that give the approximate body surface area A in square meters of a person who weighs W kilograms and is H centimeters tall. The following empirical formula is also used: A = .007W^0.425H^0.725.

Evaluate aW and when W=54 and H = 165, 2A

and give a physical interpretation of your answers. You may use the approximations (54)^0.425 ≈ 5.4, (54)^-0.575 ≈ .10, (165)^0.725 ≈ 40.5, and (165)^-0.275 ≈ .25.

aW and when W=54 and H = 165, 2A

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