Find the median, lower quartile, and upper quartile for the set of data:

4, 5, 7, 11, 12, 15, 16

Median =
Lower quartile =
Upper quartile =

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

Find cot x if sin x cot x csc x = √2

The change in water level of a lake is modeled by a polynomial function, w(x). described how to find the x-intercepts of w(x) and how to construct a rough graph of w(x) so that the parks department can predict when there will be no chage in the water level. you may create a sample polynomial of degree 3 or higher to use in your explanations.