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Evaluate the function f(r) = vr+ 4 +3 at the given values of the independent variable and simplify. a. f( -4) b. f(12) c. f(x - 4) a. f( - 4) = (Simplify your answer.)Solve the right triangle with the given parts. B B = 72.64", b= 1.403 A b C Select the correct answer below and, if necessary, fill in the answer boxes to complete your choice. O A. A= (Round to three decimal places as needed.) O B. There is not enough information to solve the triangle.\fA study of urban density shows that the population density A (in persons/mi?) is related to the distance c (in mi) from the city center by log , A = log of - we+ lo", where f, w,and I are positive constants. Solve for A as a function of c. A= foles - WC (Simplify your answer.)