Identify the sampling method used. every third student signing up for astronomy class is asked about telescope preferences..
a. systematic
c. stratified
b. random

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.

State if the two triangles are congruent. if they are, state how you know?

When you find the area of a triangle do you use in. or in2