Just answer 1 and 3

1. [-/2 Points] DETAILS SCALCET9 14.1.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Let f ( x, y, z) = In( z - v x2 + yz). (a) Evaluate f(4, -3, 9). (b) Find the domain of f. (Enter your answers as a comma-separated list of inequalities.) Need Help? Read It Submit Answer 2. [1/1 Points] DETAILS PREVIOUS ANSWERS SCALCET9 14.1.016. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find and sketch the domain of the function. f ( x, y, z) = In(36 - 9x2 - 4y2 - 22) - N O O O Need Help? Read It Submit Answer 3. [2/3 Points] DETAILS PREVIOUS ANSWERS SCALCET9 14.1.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A model for the surface area of a human body is given by the function S = f(w, h) = 0.1091w0.425/0.725 where w is the weight (in pounds), h is the height (in inches), and S is measured in square feet. Find f(185, 71) and interpret it. (Round your answer to one decimal place.) The expression f(185, 71) means that the surface area of a person with a height of 71 inches