Joanne divided of a pastry into 3 equal pieces. Which fraction of the original pastry represents each of the 3 pieces Joanne cut?

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

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.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.