The height of lava ejected from the Stromboli volcano can be modeled by the relation h= - 5t(t-11), where h is the height, in metres, of the lava above the crater and t is the time, in seconds, since it was ejected. a) Graph the scenario.
Include key information and show work below. Select an appropriate scale.

b) Find the maximum height reached by the
lava to the nearest metre.

c) How long does the lava take to reach the maximum height?

d) Is the length of time that the lava is in the air twice the answer from part c)? Explain why or why not.

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: