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• on a coordinate plane, rectangles a b c d and e f g h are shown. the length of side a b is 6 units and the length of side b c is 3 units. the length of side e f is 8 units and the length of side f g is 4 units. is rectangle efgh the result of a dilation of rectangle abcd with a center of dilation at the origin? why or why not? yes, because corresponding sides are parallel and have lengths in the ratio four-thirds yes, because both figures are rectangles and all rectangles are similar. no, because the center of dilation is not at (0, 0). no, because corresponding sides have different slopes.
  
• select the simplest mole ratio for each substance. glucose (c6h12o6): sulfuric acid (h2so4): butene (c4h8):
  
• which sentence revision correctly uses a possessive pronoun? nikita would like to know which car is theirs. nikita would like to know which is him or her car. nikita would like to know which car belongs to them. nikita would like to know which car belongs to he or she.
  
• which best explains why social and emotional development during childhood is important for life? practicing social skills as a child helps the body develop a stronger immune system. cooperating with others will allow for greater success in adulthood when getting a job. social skills will help bring an adolescent into puberty. emotional development will affect physical balance as an adult ages.
  
• beta-carotene is an organic compound with an orange color. the diagram above shows the ultraviolet spectrum of beta-carotene. which of the following statements is true about the absorption bands in the spectrum?
  
• which best defines the term spoils system? a system that forced american indians to relocate to oklahoma territory a system that allowed the winning political party to give jobs to supporters a system that implemented the renewal of a charter for a national bank a system of federal tariffs on goods imported from foreign nations
  
• which of the following is the most likely to occur if the temperature of seawater decreases
  
• the presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals? fields dipoles domains forces
  
• what best describes these three molecules? they are not isomers. they are structural isomers. they are geometric isomers. they are both structural and geometric isomers.
  
• jessica is helping a friend dislodge a piece of meat from her throat. she delivers five blows on her friend’s back with her fist and then gives him five abdominal thrusts. is jessica doing the procedure correctly? no, she should use the heel of her hand for the blows. no, she should use the side of her hand for the blows. no, she should use her elbows to deliver the blows. no, she should use a tennis ball to deliver the blows.