9. Consider the interval [0, 2n] for the function y sec x. State an x- value at which the instantaneous rate of change would be: • Zero: • Positive: • Negative: • Not possible to determine:

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A:

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A: Note As you don't mention what to find .i am just simplify

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A: Given information 95% confidence interval = (128 minutes, 147 minutes)

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A: ab=ab