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• which of the following best describes why the sun’s spectrum contains black lines over an underlying rainbow?
  
• triangle a b c is shown. angle c a b is a right angle. angle a b c is 30 degrees and angle b c a is 60 degrees. the length of a c is 9 and the length of hypotenuse c b is 18. which trigonometric ratios are correct for triangle abc? select three options. sin(c) = startfraction startroot 3 endroot over 2 endfraction cos(b) = startfraction startroot 2 endroot over 3 endfraction tan(c) = startroot 3 endroot sin(b) = one-half tan(b) = startfraction 2 startroot 3 endroot over 3 endfraction
  
• a spherical container has a radius of 9 centimeters. it is filled with a solution that costs $2.10 per cubic centimeters. what is the total value of the solution in the container? use 3.14 for ​ π ​. enter your answer in the box to the nearest cent.
  
• read the excerpt from the odyssey. six benches were left empty in every ship that evening when we pulled away from death. and this new grief we bore with us to sea: our precious lives we had, but not our friends. no ship made sail next day until some shipmate had raised a cry, three times, for each poor ghost unfleshed by the cicones on that field. which key details should be included in a paraphrase of this passage? select two options. a shipmate cried out three times for each life lost. six men from each ship lost their lives at cicones. the ships pulled away from shore during the evening. the men were greatly saddened by the loss of their friends. many of odysseus’s men did not escape with their lives
  
• why did president johnson decide not to run for reelection in 1968? public opposition to the vietnam war had made him unpopular. public support for the vietnam war had made him unpopular. he had already served two terms as us president. his speech at the democratic national convention had prompted violence.
  
• albuquerque became a railhead ________________ a. because perea, the sheep baron, refused to sell his land in bernalillo. b. because santa fe wanted to remain a remote town. c. because routes 40 and 25 crossed at this point. d. because they needed to refresh water supplies for crop production.
  
• which functions are equivalent to f (x) = rootindex 4 startroot 162 endroot superscript x? check all that apply. f (x) = 162 superscript startfraction x over 4 f (x) = (3 rootindex 4 startroot 2 endroot) superscript x f (x) = 9 rootindex 4 startroot 2 endroot superscript x f (x) = 126 superscript startfraction 4 over x f (x) = left-bracket 3 (2 superscript one-fourth baseline) right-bracket superscript x
  
• which example best illustrates that light behaves like particles? light bends as it strikes a window. light bounces off a white cement sidewalk. light travels in space at a speed of about 3.0 x 108 m/s. light increases in speed as it moves through matter.
  
• particle q1 has a charge of 2.7 μc and a velocity of 773 m/s. if it experiences a magnetic force of 5.75 × 10–3 n, what is the strength of the magnetic field?
  
• iq scores are collected from a sample of students at a large university. the scores are shown below. 99, 100, 105, 104, 102, 105, 105, 121, 104 what is the median iq score for this sample?