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• ozone forms near the ground when pollutants from cars are exposed to uv radiation and oxygen. this is an example of a _______. a. primary pollutant b. secondary pollutant c. tertiary pollutant d. none of the above
  
• eating whole foods when young reduces the risk of developing which of the following “old age” diseases?
  
• which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door selling b. using billboards to advertise the products c. making online shopping services available d. giving discounts on products
  
• a chemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. the table shows the amount of each solution used. what is the value of x, the acid concentration of the first solution? 0.05 0.10 0.15 0.20
  
• what was one result of u.s. covert actions in latin america and the middle east?
  
• what is the size of the force acting on a copper wire with a magnetic flux density of 3.6 x 10-2 t acting at right angles to the wire of length 19 m and current of 0.043 a? round your answer to 2 significant figures.
  
• part a: what is the equation of a circle with center (−2, 4) and a diameter of 6 units? show all necessary steps. (4 points) part b: explain how to graph the circle by hand on the coordinate plane. (3 points) part c: what is the domain of the circle? explain how to determine the domain. (3 points)
  
• what is the domain of the function y = startroot x endroot + 4? negative infinity less-than x less-than infinity negative 4 less-than-or-equal-to x less-than infinity 0 less-than-or-equal-to x less-than infinity 4 less-than-or-equal-to x less-than infinity
  
• after a coup d’etat in spain overthrew the government, augustin de iturbide proclaimed
  
• graph the system of equations on graph paper to answer the question. {y=−3x+9y=−x−5 what is the solution for the system of equations? enter your answer by filling in the boxes.