Which statements correctly compare two numbers

What is always true about a positive integer raised to a negative odd power?

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)