30. Olympic Flag You are using a math software program to design a pattern for an Olympic flag. In addition
to the dimensions shown in the diagram, the distance between any two adjacent rings in the same row is 3
inches.

a. Use the given dimensions to write equations representing the outer circles of the five rings. Use
inches as units in a coordinate plane with the lower left corner of the flag at the origin.

b. Each ring is 3 inches thick. Explain how you can adjust the equations of the outer circles to write
equations representing the inner circles.

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

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:

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges