The table gives the height as time passes of a typical pine tree grown for lumber at a managed site. Tree age (years) 14 21 28 35 42 49 Height (feet) 41 53 64 71 79 82 If H(t) is the height of the tree after t years, construct a table of estimated values for H'. (Use a one-sided difference quotient with an adjacent point for the first and last values, and the average of two difference quotients with adjacent points for all other values. Round your answers to two decimal places.) t 14 21 28 35 42 49 19 H'(t)