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• the heights of a certain type of tree are approximately normally distributed with a mean height = 5 ft and a standard deviation = 0.4 ft. which statement must be true? a tree with a height of 5.4 ft is 1 standard deviation below the mean. a tree with a height of 4.6 ft is 1 standard deviation above the mean. a tree with a height of 5.8 ft is 2.5 standard deviations above the mean. a tree with a height of 6.2 ft is 3 standard deviations above the mean.
  
• what is tenebrism? a. the three dimensional effect light creates b. a style of painting using sharp contrasts of light and dark c. the shadows created by the artist d. none of the above
  
• what differentiates extension from hyperextension? a. extension bends joints in the opposite direction as hyperextension. b. extension straightens a joint, and hyperextension bends it but in the opposite direction from flexion. c. hyperextension straightens a joint, and extension bends it in the opposite direction from flexion. d. both bend joints, but extension can be damaging.
  
• if x = 6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation? the discriminant is 0. the discriminant is 6. the discriminant is positive. the discriminant is negative.
  
• during the development of human offspring, which of the following begins to hear and see?
  
• the chart lists the masses and velocities of four objects. a 3-column table with 4 rows titled motion of 4 objects. the first column labeled object has entries w, x, y, z. the second column labeled mass (kilograms) has entries 58, 34, 89, 60. the third column labeled velocity (meters per second) has entries 1, 2, 0.5, 2. which object requires the greatest change in momentum in order to stop its motion? w x y z
  
• the plateau of tibet, the world's largest plateau, is located in which country? a. china b. north korea c. japan d. mongolia
  
• what feeling(s) is the figure above supposed to create? a. humor b. obedience c. fear and power d. anger and frustration
  
• read the excerpt from roosevelt’s state of the union address and the poster below it. fortunately, there are only a few americans who place appetite above patriotism. the overwhelming majority realize that the food we send abroad is for essential military purposes, for our own and allied fighting forces, and for necessary help in areas that we occupy. poster about rationing. both the speech and the poster use parallelism to convey their message. diction to convey their message. repetition to convey their message. images to convey their message.
  
• an elephant has 56 chromosomes. which statement about a zygote of an elephant is true? a. the zygote has 28 chromosomes, mostly inherited from the father. b. the zygote has 56 chromosomes, all inherited from the mother. c. the zygote has 28 chromosomes, all inherited from the mother. d. the zygote has 56 chromosomes, 28 inherited from the mother and 28 from the father. e. the zygote has 28 chromosomes, 14 inherited from the mother and 14 from the father.