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• the nile was most important to the egyptians because it delivered __________ and __________. a. salt . . . fish b. water . . . silt c. silt . . . food d. water . . . food
  
• what is the main reason that people are hesitant to use nuclear energy? a. it produces radioactive waste. b. it uses large amounts of water. c. the ore used for nuclear energy must be mined. d. it is more damaging to natural habitats than the use of coal. please select the best answer from the choices provided a b c d
  
• the division and sharing of power between state and national governments is the principle ofchecks and balances.federalism.branching.popular sovereignty.
  
• the growth of gdp may understate changes in the economy's economic well-being over time if the
  
• which of the following is an advantage of word processing productivity programs? (check all that apply) create versions of documents save and modify documents indefinitely create a variety of layouts using text and graphics check a document for spelling and grammar accuracy
  
• what are the three techniques used in basket weaving? a. coiling, weaving, roping b. coiling, twilling, twisting c. coiling, twining, plaiting d. crimping, twining, plaiting
  
• which of the following statements does not represent assumptions that stage theories share?
  
• suppose that you'd like to find out if a distant star is moving relative to the earth. the star is much too far away to detect any change in its brightness as it moves toward or away from the earth. instead we can use the doppler effect to determine its relative speed. for this problem we are going to look at the spectral lines from hydrogen, specifically the one with a wavelength of 656.46 nm.
  
• in the derivation of the formula for the volume of a cone, the volume of the cone is calculated to be startfraction pi over 4 endfraction times the volume of the pyramid that it fits inside. a cone is inside of a pyramid with a square base. the cone has a radius of r and a height of h. the length of the base edge of the pyramid is 2 r. which expression represents the volume of the cone that is startfraction pi over 4 endfraction times the volume of the pyramid that it fits inside? startfraction pi over 4 endfraction(2r2h) startfraction pi over 4 endfraction(4r2h) startfraction pi over 4 endfraction(startfraction r squared h over 3 endfraction) startfraction pi over 4 endfraction(startfraction 4 r squared h over 3 endfraction)
  
• multiply 2 y (one-fourth y + three-fourths). 9 over 4 y + 11 over 4 one-half y + 6 over 4 one-half y squared + 6 over 4 y 9 over 4 y squared + 11 over 4 y