- How to find corelation btween X and Y in this question? plz tell me?

Discover Questions

I NEED HELP WITH THIS STATISTICS PROBLEM PLEASE HELP!!!!!? Find the points on the curve at which r(t) and r(t)′ are perpendicular. r(t)=(5t)a+(1+t^2)b
r'(t)=(5,2t) How do I do it :(? 2/9 + (- 1/3)? How is the earthes movement help us measure time? Do nonelectrolytes not dissociate at all? And do they dissolve?