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• the piecewise function h(x) is shown on the graph. on a coordinate plane, a piecewise function has 2 lines. the first line has a closed circle at (negative 4, 3) and goes down to a closed circle at (2, 0). the second line has an open circle at (2, 3) and goes up to a closed circle at (4, 5). what is the value of h(2)? −2 −1 0 3
  
• an example of a skeletal muscle working occurs when a person __________. a. perspires heavily b. digests food c. takes a breath d. stands up
  
• which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control? construction of dams to produce electricity habitat destruction that decreases beaver population increased erosion due to improper farming techniques overfishing in artificial lakes
  
• the table below summarizes the traits that mendel examined during his experiments. traits studied by mendel a 3-column table labeled traits studies by mendel has 7 rows. column 1 has entries plant height, flower color, flower position, pod color, pod shape, seed color, seed shape. column 2 has entries tall, purple, end of stem, green, inflated, yellow, smooth. column 3 has entries short, white, middle of stem, yellow, constricted, green, wrinkled. what do these characteristics all have in common? they are all dominant. they can all be easily observed. they are all recessive. they can all be applied to other plants.
  
• both the sympathetic and parasympathetic divisions can be found in the __________ nervous system.a.centralb.autonomicc.somaticd.primitive
  
• one of the first things vladimir i did after he became the ruler of kiev was to force the population to submit to his authoritarian rule. make orthodox christianity the state religion. isolate kiev so that trade virtually stopped. create a strong military for kiev’s defense.
  
• the graph shows excess supply. a graph titled excess supply has quantity on the x-axis and price on the y-axis. a line with positive slope represents supply and a line with negative slope represents demand. the lines intersect at the point of equilibrium (p star, q star). a point on the demand line is (p 2, quantity demanded) and a point on the supply line is (p 2, quantity supplied). both points are higher than the point of equilibrium. excess supply is indicated between the 2 points. which needs to happen to the price indicated by p2 on the graph in order to achieve equilibrium? it needs to be increased. it needs to be decreased. it needs to reach the price ceiling. it needs to remain unchanged.
  
• kai takes a hamburger off of the grill and puts a piece of cheese on it. explain how and why the cheese melts when kai puts it on the hamburger.
  
• what is the most likely reason that nations raised tariffs on imports during the great depression? they wanted to help other nations profit from trade. they wanted to terminate all trade with other nations. they wanted to increase sales of their own products. they wanted to encourage more profitable imports.
  
• the volume of an oblique pyramid with a square base is v units3 and the height is h units. an oblique pyramid with a square base has a volume of v units cubed and a height of h units. which expression represents the area of the base of the pyramid? startfraction 3 v over h endfraction units2 (3v – h) units2 (v – 3h) units2 startfraction v over 3 h endfraction units2