Which equation has the solutions x=5+-2 square root7/3

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.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

We just started the introduction into circles and i have no idea how to do this.