body is given by the function
S(w, h) = 0.1091w042510.725
where S is measured in square feet, w is the weight in pounds, and it is the height in inches.
as as
(a) Find and
дw dh
when w = 160 lb and h = 70 in. Include correct units.
(b) Which has a greater effect on S at w = 160 and h = 70, weight or height? Explain.