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• decide if you should use tú or usted when speaking to the following person. your mother's boss tú usted
  
• factor using the identity: a3 + b3 = (a + b)(a2 – ab + b2) z3 + 8 (z + 2)(z2 – 2z + 4) (z + 2)3 (z3 + 8)(z2 – 8z3 + 64) (z + 8)(z2 – 8z + 64)
  
• which best states the central idea of this excerpt? it is always necessary to work with a partner when dealing with unidentified substances. extreme precautions must be taken when dealing with potentially hazardous materials. scientists are well known for being overly cautious and for taking unnecessary safety measures. it is standard procedure to wear both space suits and hearing protectors in laboratories.
  
• which parental x chromosome has matches for calix’s dna? mother's father's both parents' neither parents'
  
• the composite figure is made up of a triangular prism and a pyramid. the two solids have congruent bases.
  
• the property of an antimicrobial agent to be highly toxic against its target microbe while being far less toxic to the cells of the host organism is called
  
• anja collected data about the number of dogs 9th-grade students own. she created this histogram to represent the data and determined that it is skewed right. a graph shows number of dogs labeled 0 to 2 on the horizontal axis and frequency on the vertical axis. 0 dogs at frequency 20. 1 dog at frequency 15. 2 dogs at frequency 12. which statement is true about anja’s claim? she is incorrect; the histogram is skewed to the left because more data is on the left side. she is incorrect; the histogram is skewed to the left because there is more data on the right side. she is incorrect; the histogram is symmetrical because the right side is equal to the left side. she is correct; the histogram is skewed to the right because there is less data on the right side.
  
• what features of the passage identify it as using a cause-and-effect structure? select three options. the first sentence lists specific conditions followed by what might eventually happen. the first sentence uses the expressions “on the one hand” and “on the other hand.” the second sentence starts with the expression “for this reason.” the second sentence lists potential consequences of the situation described. the second sentence describes the citizens of the conquered city.
  
• the following images show earth and the four jovian planets of our solar system. rank these planets from left to right based on their mass, from lowest to highest. (not to scale.)
  
• what is the length of , rounded to the nearest tenth? 13.0 units 28.8 units 31.2 units 33.8 units