What is the area of a circle to the nearest hundredth of a square foot, if the diameter of the circle is 12 feet? Record your answer on the grid below. Be sure to use the correct place value. Ol0 Olo Olo OP Your answer 4 points

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.