Brennan is making a poster for the drama club's new production. it is a regular pentagon with side lengths of 12 inches. the school wants to put up a giant replica of the poster during athletic events. if the length of each side is 8 times the original, how many times larger is the area of the replica than the area of the original?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?