Mathematics, 22.01.2021 16:00 robtodd4614
In the proof of the Law of Cosines, the equation c^2 = h^2 + (b - x)^2 was created using the Pythagorean theorem. Which equation is a result of expanding (b - x)^2?
A. c^2 = h^2 + b^2 - x^2
B. c^2 = h^2 + b^2bx + x^2
C. c^2 = h^2 + b^2 + x^2
D. c^2 = h^2 + b^2 - 2bx - x^2
Answers: 1
Mathematics, 21.06.2019 19:00, amayareyes101
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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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