Гч
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solve for x in the equation x2 - 4x-9= 29.
ox= 2+ 42
0 х= 2+ 33
ox= 2+ (34
ох=4+ 42
су
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State if the two triangles are congruent. if they are, state how you know?

Which of the following contains a variable?

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?