What is 7x42 because it’s on a exam

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Triangle xyz has vertices x(1,3), y(0,0)

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.