What is the directrix of the parabola given by the equation r = 2/1 + sinθ
rsinθ = 2
sinθ = 2<...
Mathematics, 18.08.2020 01:01 S28462182
What is the directrix of the parabola given by the equation r = 2/1 + sinθ
rsinθ = 2
sinθ = 2
rcosθ = 2
r = 2
Answers: 2
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There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
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