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• use the information in the table to calculate the ages of the meteorites. the half-life of potassium-40 is 1.3 billion years. meteorite initial amount (g) final amount (g) 1 30 7.5 2 80 5 3 100 12.5 use your calculations to answer the questions. how old is meteorite 1? how old is meteorite 2? how old is meteorite 3?
  
• the trial of nicola sacco and bartolomeo vanzetti of the early-1920s responses a was the first trial heard in the supreme court regarding political appointees.was the first trial heard in the supreme court regarding political appointees. b was the first criminal hearing held in the u.s. supreme court that involved murder.was the first criminal hearing held in the u.s. supreme court that involved murder. c showed that religious fundamentalists were losing political power after world war i.showed that religious fundamentalists were losing political power after world war i. d proved that there was severe social and judicial bias against immigrants in the united states.
  
• star-shaped cells that form a supporting network in the brain and spinal cord are called
  
• as the size of your audience increases, your presentation should usually become more
  
• stacey wants to know if plants have the same phototrophic reaction from artificial light as they do from natural light. using steps in the scientific method, design an experiment that will test this effect.
  
• which sentence from the text best describes the suspenseful atmosphere on the island?
  
• during the children’s crusade in birmingham in may of 1963, four young girls were killed. members of the ku klux klan were arrested. the police used fire hoses on protesters. residents reacted peacefully to protests.
  
• why does the waitress agree to answer bolsa's questions? because sancho orders drinks because she likes bolsa because she knows mrs. morningstar really cares about william
  
• δjkl has j = 7, k = 11, and m∠j = 18°. complete the statements to determine all possible measures of angle k. triangle jkl meets the criteria, which means it is the ambiguous case. substitute the known values into the law of sines: startfraction sine (18 degrees) over 7 endfraction = startfraction sine (uppercase k) over 11 endfraction. cross multiply: 11sin(18°) = . solve for the measure of angle k, and use a calculator to determine the value. round to the nearest degree: m∠k ≈ °. however, because this is the ambiguous case, the measure of angle k could also be °.
  
• which statement best compares the use of imagery and color in the poem and artwork to portray the woman? the artwork’s use of color presents a woman of vigor and action, while the poem does not. the poem portrays the woman as unrefined, while the painting presents her as cultured. the artwork suggests a woman in her home, while the poem’s figurative language connects her to nature. the poem suggests that the woman is aloof, while the painting shows her to be self-absorbed.