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• what is the common difference in the following arithmetic sequence? 7, 3, –1, –5, .... –3 –4 4 12
  
• what is the meaning of the excerpt? the narrator’s brother is ignoring his mother’s behavior. the narrator’s brother is playing a trick on his mother. the narrator’s mother is attempting to identify what her son ate. the narrator’s mother is addressing her sons for their misbehavior.
  
• read the excerpt from ""the most dangerous game."" bleak darkness was blacking out the sea and jungle when rainsford sighted the lights. he came upon them as he turned a crook in the coast line, and his first thought was that he had come upon a village, for there were many lights. but as he forged along he saw to his great astonishment that all the lights were in one enormous building—a lofty structure with pointed towers plunging upward into the gloom. his eyes made out the shadowy outlines of a palatial chateau; it was set on a high bluff, and on three sides of it cliffs dived down to where the sea licked greedy lips in the shadows. in the writing of this excerpt, the writer employed
  
• select all the correct answers. which two sentences describe the demographic effects of the agricultural revolution? the percentage of the total population living in urban areas increased. the rural population increased steadily, while the urban population stabilized. the urban population increased steadily, while the total population stabilized. the percentage of the workforce employed in agriculture decreased. the percentage of the workforce employed in agriculture increased.
  
• triangle def is isosceles, where line segment d f is-congruent-to line segment f e. angle fde is bisected by segment dg, creating angle gde with a measure of 29°. isosceles triangle d e f is shown. angle f d e is bisected by segment d g. angle g d e is 29 degrees. what is the measure of angle dfe? 29° 32° 58° 64°
  
• as kiev increased its trade and contacts around the region, the most significant result was that
  
• which system of equations is graphed below? on a coordinate plane, a line goes through (0, 1) and (4, negative 2) and another goes through (0, negative 6) and (6, 0).
  
• explain why p(a|d) and p(d|a) from the table below are not equal. a 4-column table has 3 rows. the first column has entries a, b, total. the second column is labeled c with entries 6, 1, 7. the third column is labeled d with entries 2, 8, 10. the fourth column is labeled total with entries 8, 9, 17.
  
• an online news source reports that the proportion of smartphone owners who use a certain operating system is 0.216. two simulations will be conducted to create a sampling distribution of the sample proportion from a population with proportion 0.216. simulation a will consist of 1,000 trials with a sample size of 50. simulation b will consist of 500 trials with a sample size of 100. which of the following describes the centers and variabilities that should be apparent in the distributions generated by simulation a and simulation b?
  
• which situation would be more likely to occur in the modern era than in earlier periods of human history?