need help to solve, please see attached

Find the x-value(s) of the relative maxima and relative minima, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = x/15 relative maxima: X = relative minima: X = Consider the following function. (t) = 3t - 5t* + 23 Find the derivative of the function. F ' (t ) = Find the critical numbers of the function. (Enter your answers as a comma-separated list.) Find the relative maxima and relative minima, if any, of the function. (If an answer does not exist, enter DNE.) relative maximum ( x , V ) = relative minimum ( x , V ) = Consider the following function 9(x) = 2x2 + 4,000 + 11 X Find the derivative of the function. g '( x ) = Find the critical numbers of the function. (Enter your answers as a comma-separated list.) X = Find the x-value(s) of the relative maxima and relative minima, if any, of the function. (If an answer does not exist, enter DNE.) relative maxima X = relative minima