Suppose A and B are independent events. If P(A)=0.5 and P(B) = 0.45, what is
Plan B)?
0.225

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

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