What is the variance of a dataset {5, 10, 15, 20} using the formula var(X) = β(X - ΞΌ)Β² / n?
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What is the equation of an exponential function that represents the graph shown? f(x) = ?, where the graph is increasing consistently from left to right.
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Question: In triangle ABC, angle BAC is 80Β°. If side AC = 12 cm and side AB = 9 cm, what is the measure of angle ABC?