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• consider the function y = cos(x). which change would increase the period by a factor of 3?
  
• identify the reaction type for each generic chemical equation. a + b → ab: ab → a + b: hydrocarbon + o2 → co2 + h2o: ab + cd → ad + cb:
  
• a graph has quantity supplied on the x-axis and price in dollars on the y-axis. a line that represents supply has a positive slope and a line that represents demand has a negative slope. the lines intersect at point (30, 9). line p is drawn from the point of equilibrium to the y-axis, and line q is drawn from the point of equilibrium to the x-axis. what does ""p
  
• stuart is studying weather data for his region. the data was gathered from 1950 to 2016. which observation would provide the strongest evidence that the climate of his region has changed during this time? a. average annual rainfall for 1985-2016 increased by 20 percent compared to the previous 30 years. b. total rainfall in 2014 was 30 percent greater compared to 1950. c. the lowest recorded temperature occurred in 1954. d. the highest recorded temperature occurred in 2016.
  
• which circumstances could be sources of error within the experiment? check all that apply. not fully submerging the object when doing the fluid displacement procedure water that is left behind in the collection container when it is transferred for measurement water that soaks into the materials of the balls, affecting the mass in repeated trials the time of day when the measurements are recorded water in the bucket, approximated to the closest 10 ml due to surface tension at the top of the bucket the air pressure in the room and its affect on the scales that measure the mass of each object
  
• the function shown is reflected across the y-axis to create a new function. which is true about the domain and range of each function? both the domain and range change. both the range and domain stay the same. the domain stays the same, but the range changes. the range stays the same, but the domain changes.
  
• a tourist bus is carrying passengers from the bottom of a hill to the top. the people, the bus, and the luggage can be analyzed as a single . the total amount of energy in the system as the bus travels. this situation happens because some of the kinetic energy changes to energy because of friction between the tires and the road.
  
• why was the battle of saratoga so important in the war of independence? the british won the battle. it made the americans think that they could win the war without any help. it made the french decide to help the americans. it was washington’s first victory of the war.
  
• a room that uses numerous columns to support a flat ceiling is known as a ________ hall.
  
• which animals typically have a reproductive group and a nonreproductive group within their social structure? bees lions moose zebras