Let r (a, b) e z2 2a2(a - 4) 1)3 10 3(2b 3. (2b give proofs for each of the propositions below a) the relation r is an equivalence relation on the set z b) vx, y, z e z, ({(x, y), (x, z), (y, z) nr r) y+z, 1)

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

Which of those sequences is a geometric sequence

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width