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• which property of the coating on fiber-optic strands makes light visible only at the ends of the strands? reflectivity absorbency transparency translucency
  
• which sources do scientists use to study the interior of earth? check all that apply. earth’s orbit core samples sea level earthquakes s waves rock composition
  
• katrina is asked to simplify the expression negative 3 a minus 4 b minus 2 (5 a minus 7 b). she writes: negative 3 a minus 4 b minus 2 (5 a minus 7 b) = negative 3 a minus 4 b minus 10 a + 14 b which property allows her to do this? the associative property the commutative property the distributive property the additive identity property
  
• trevor is pushing two boxes across a sidewalk. box a has a mass of 4 kg. box b has a mass of 8 kg. according to newton's second law of motion, if trevor applies the same amount of force to each box, a. box b will accelerate at twice the rate of box a. b. box a will accelerate at twice the rate of box b. c. box a and box b will accelerate at the same rate. d. box b will move twice the distance of box a.
  
• consider the equation below. mg(s) + 2hcl(aq) mc008-1.jpg mgcl2(aq) + h2(g) which compound is the gas in this chemical reaction? mg hcl mgcl2 h2
  
• how do the muscles help in thermoregulation? muscles produce oil that burns in the presence of oxygen. muscles undergo a chemical reaction that absorbs heat. muscles break down carbon dioxide, producing heat. muscles contract rapidly, producing heat.
  
• how does the meaning of the underlined word, prowl, support the author’s purpose in this excerpt? select two options. it illustrates that the police overlook the gangsters’ crimes. it shows what happens when police allow gangsters to operate. it indicates that the gangsters are looking for vulnerable people. it explains why the gangsters were sent back to their home countries. it supports the idea that the gangsters are involved in criminal activities.
  
• nika earns a gross pay of $73,000. her total employee benefits are 22% of her gross pay and she has no job expenses. if nika gets an increase in pay of $5,000, what will her total employment compensation be? (note: employee benefits are based on nika's original gross pay.) a. $78,000 b. $79,100 c. $94,060 d. $95,160
  
• instead of a troika coming to power after lenin’s death in 1924, what happened? there were general elections, and stalin was able to gain power. there was a power struggle between stalin and trotsky, and trotsky won. there was a civil war, and the armed forces led by stalin were able to prevail. there was a power struggle between stalin and trotsky, and stalin won.
  
• missing one payment may cause borrowers toneed a credit report.lose their collateral.be charged a late fee.need a down payment.