Discover Questions

If f(y1, y2) = 1/k exp(-1/2 [(y1)^2 +(y2)^2 +2y1y2 - 22y1 - 14y2 +65] represents a bivariate normal density function. Find k? Turpin Family (13 kids held hostage)
Do you suppose these children/adults have birth certificates ???????? How can I get electricity and water on a private dirt road? That is within four miles of any eletricity. Also what would be the cost etc?? How does sin pi/12= sin 11pi/12? Using the opposite angle identities? Is it possible to find gold and diamond in saturn rings?