Hey guys, I need help ASAP!

1.Determine the solution ofx² 16 mod 23.

2.It is determined that (p - 1)/2 elements are QR and (p - 1)/2 elements are QNR. This is in reference to Zp* with (p-1) elements. Is it a true determination?

3.Define the term used to refer to the clusters that are selected from a clustering sample.

4.A certain sampling method has the following characteristics; cluster, stratified and systematic sampling. What is the name given to such a method?

5.Determine an example of a signal with a plot of pole- zero where M is given as 8.

6.Give a characteristic in signal x(n)=aⁿu(n).

7.The point <0 in a z plane lies what part of circle |z| =1?

8.Given the relation z=e^sT, determine T?

9.Determine the minimum element given set A U B U C where sets A, B, C are catered for. Set A B has 7 elements, setB C has 8 elements and set C A 7 elements.

10. What is the Cartesian product of set A and B which is given as A X B where set A = {1, 2}and C = {3, 4}?