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• how does the second passage develop kaku’s idea that humans have become active choreographers of nature?
  
• what values of c and d would make the following expression represent a real number? i(2 + 3i)(c + di) c = 2, d = 3 c = –2, d = 3 c = 3, d = –2 c = –3, d = –2
  
• the radius of a circle with an area of 60 square centimeters is represented by the expression startroot startfraction 60 over pi endfraction centimeters. what is another way of expressing the radius? 2 startroot 15 pi endroot 4 startroot 5 pi endroot startfraction 2 startroot 15 pi endroot over pi endfraction startfraction 4 startroot 5 pi endroot over pi endfraction
  
• identify the type of star that goes through these steps in their life cycles. formation of a protostar: formation of a black hole: formation of a white dwarf: formation of a red giant star: formation of a main sequence star:
  
• a green rat snake that lives in the grass and a brown snake that lives in the desert is a form of
  
• what is the meaning of the simile “a bright girdle” in this excerpt from “dover beach” by matthew arnold?the sea of faithwas once, too, at the full, and round earth's shorelay like the folds of a bright girdle furled.but now i only hearits melancholy, long, withdrawing roar,retreating, to the breath a. it suggests the greatness of an era when england was a world power and commercial success. b. it critiques the society of the poet's time for conforming too strictly to convention. c. it refers to the feeling of support and belonging that people once felt in happier times. d. it highlights the contrast between the vast seascape and the narrow world of the poet.
  
• gamal spent $12.50 at the book store. the difference between the amount he spent at the video game store and the amount he spent at the book store was $17. the equation d minus 12.50 = 17 can be used to represent this situation, where d is the amount gamal spent at the video game store. which equation is an equivalent equation that can be used to find the amount gamal spent at the video game store? d = 17 minus 12.50 d = 17 + 12.50 d minus 12.50 = negative 17 d + 12.50 = 17
  
• what is another name for angle 2? lines e h and d f intersect at point g. angle 2 is formed by line segments d g and g e and angle 1 is formed by line segments e g and g f. angle d g e angle g e d angle e g f angle g e f
  
• describe the percentage of white teens who mostly disagree with their parents about politics
  
• use the information in the table to calculate the ages of the meteorites. the half-life of potassium-40 is 1.3 billion years. meteorite initial amount (g) final amount (g) 1 30 7.5 2 80 5 3 100 12.5 use your calculations to answer the questions. how old is meteorite 1? how old is meteorite 2? how old is meteorite 3?