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• which of the following is/are correct about light? a. light energy travels as waves. b. light always travels at the same speed. c. light cannot travel through liquids. d. all of these
  
• yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. he finds the mean is 14. his steps for finding the standard deviation are below. what is the first error he made in computing the standard deviation? yuri failed to find the difference between each data point and the mean. yuri divided by n instead of n -1. yuri did not subtract 9 - 14 correctly. yuri failed to square -2 correctly.
  
• a new species would bless me as its creator and source; many happy and excellent natures would owe their being to me."" satan arrowright god arrowright adam arrowright
  
• which of the following gila monster adaptations is based on the reproductive cycles of gambel’s quails and cottontail rabbits? a. water absorption through their leaky skin b. fat storage in their tails c. burrowing during periods of inactivity d. their crepuscular activity schedule
  
• how did slaves in ancient greece differ from models of slavery in later societies?a. slaves in ancient greece were considered people, not property.b. there were arguments that the best way to treat a slave was with kindness rather than violence.c. slaves worked in various positions in society, spread out rather than concentrated in large, hard labor groups.d. slaves were desired as a status symbol to indicate that one did not have to do work.
  
• which statements describe functions of antibodies? select two options. they maintain the cell’s shape. they regulate cell processes. they protect the body from infectious agents. they signal the immune system to destroy pathogens. they speed up biochemical reactions. they send electrical signals.
  
• for a piece of legislation to proceed to the senate, it needs a certain number of votes. whose job is it to organize votes by members within each party? the whip the floor leader the caucus the committee
  
• lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference. 1. (–3x3 + 5x2 + 4x – 7) + (–6x3 + 2x – 3) 2. (–3x3) + 5x2 + 4x + (–7) + (–6x3) + 2x + (–3) 3. [(–3x3) + (–6x3)] + [4x + 2x] + [(–7) + (–3)] + [5x2] 4. –9x3 + 6x + (–10) + 5x2 5. –9x3 + 5x2 + 6x – 10
  
• why is it hard for russia to trade with other countries during the winter months?
  
• from what type of land feature is the geologist making her observations? plateau anticline syncline fault-block mountain