Final answer:
Nonlinear Solver will not be guaranteed to identify the level of training that maximizes productivity.
Step-by-step explanation:
No, Nonlinear Solver will not be guaranteed to identify the level of training that maximizes productivity. This is because the relationship between training costs and productivity in the given formula is a quadratic equation, which represents a nonlinear relationship. Nonlinear Solver is designed to solve linear equations, so it may not accurately determine the maximum level of productivity in this case.