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• the waves used by a microwave oven to cook food have a frequency of 2.45 gigahertz
  
• read mary antin’s biography from ""the promised land."" mary antin (1881-1949), immigration rights activist, came to the united states during the third great wave of immigration (1881-1920), when more than 23 million immigrants came to america. these new arrivals were largely from eastern and southern europe. although born into poverty, antin rose out of it through education and eventually attended columbia university. what is the most likely reason why this biography was included before the main text? to entertain the reader with exciting details about the author’s life to persuade the reader to feel sympathy for the author to inform the reader that the author's education was very unusual to help the reader understand the author's purpose for writing the story
  
• the simulation kept track of the variables and automatically recorded data on object displacement, velocity, and momentum. if the trials were run on a real track with real gliders, using stopwatches and meter sticks for measurement, how might the data compare? check all that apply. there would be variables that would be hard to control, leading to less reliable data. the data would be just as valid if it were recorded with a stopwatch. meter sticks may lack precision or may be read incorrectly. real glider data may vary since real collisions may involve loss of energy. human error in recording or plotting the data could be a factor. controlling real glider velocities by hand would be just as accurate as simulation controls.
  
• which of the following techniques does collins use to convey his intended message?
  
• the human body was often used in the creation of various systems of scale in the ancient world. in ancient egypt, the – was used to calculate a man’s height, while in the classical culture of ancient greece, the – was used to dictate a figure’s size.
  
• what is the length of the hypotenuse of the triangle?triangle a b c. side a c is 7 centimeters and side b c is 3 centimeters. hypotenuse a b is unknown.startroot 20 endroot cmstartroot 23 endroot cmstartroot 40 endroot cmstartroot 58 endroot cm
  
• in which social and political movement did soul music play an important role?
  
• in reviewing the “fine print” of form w-4 and the definition for exempt, what three questions could ren have asked his father to increase his understanding of his tax situation?
  
• assuming a world population of 5,700,000,000 and an annual growth rate of 1.6 percent, how many people will be added to the world's population in the next year?
  
• which of the following people worked with government in the 1960s to get laws passed to help noncitizens and farm workers? huey newton bobby seale stokely carmichael dolores huerta