Could someone explain what each step is and what each step is called? only 15 and 17 and you

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.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Which value would be a solution for x in the inequality 47-4x< 7