Need help ASAP. Please provide correct answers for all of them in order as posted. I will rate very positive.

9. [05/1 Points] PREVIOUS ANSWERS TANAPMATH712.2.052. Surface Area of a Human Body The formula 5 = o.oo71s4w-425H-725 ASK YOUR TEACHER PRACTICE ANOTHER gives the surface area S of a human body (in square meters) in terms of its weight W (in kilograms) and its height H (in centimeters). Compute 5; and g when W = 90 kg and H = 200 cm. (Round your answers to ve decimal places.) as _ 90, 200 = aW( ) X 85 _ 90, 200 = 0.00821 6H( ) J Interpret your results. (Round your answers to five decimal places.) At a weight of 90 kg and a height of 200 cm, surface area increases at a rate of rate of 0.00821 square meters per 1 cm increase in height. Need Help? 3H x square meters per 1 kg weight. And, at the same weight and height surface area is increasing at a Submit Answer 1 10. [0.5/1 Points] DETAILS PREVIOUS ANSWERS TANAPMATH7 12.2.055. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Engine Efficiency The efficiency of an internal combustion engine is given by E = 1 - V ) 0.5 where V and v are the respective maximum and minimum volumes of air in each cylinder. (a) Show that aE/aV > 0. aE v )-0.5 a av = 0.5 1 -- x (which is greater than 0) Interpret your result. For constant v, an increase in V increases the engine efficiency. (b) Show that aE/av