The position of particles A and B is described by IA = [2 ti +(t2-1) i and r = [(t + 2)i + (2 t- 5) i), respectively , where t is in seconds. Determine the point
where the particles collide and their speeds just before the collision.

fast need help.​

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3