Adentist office gives a survey to all wisdom teeth extraction patients asking them to rate the quality of their dental experience. one month after wisdom teeth extraction, the dentist contacts the patients again to ask if there were any complications from the extraction. last year, the results of the surveys showed that of the patients who had a poor dental experience, 37% had post-extraction complications. what conclusion can be drawn from this study?

a. poor dental experiences cause post-extraction complications.
b. post-extraction complications cause poor dental experiences.
c. some patients who have a poor dental experience also have post-extraction complications.
d. most patients who have a poor dental experience also have post-extraction complications.

Design an er diagram for keeping track of information about votes taken in the u.s. house of representatives during the current two-year congressional session. the database needs to keep track of each u.s. state's name (e.g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i.e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information:

Arectangular garden is 5 feet long and 3 feet wide. a second rectangular garden has dimensions that are double the dimensions of the first garden. what is the percent of change in perimeter from the first garden to the second garden?

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start