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• after the bank cashed a check maureen wrote for $60, her balance was negative 14 dollars. the equation b + (negative 60) = negative 14 can be used to represent this situation, where b is maureen’s balance, in dollars, before the check was cashed. maureen attempted to solve the equation using the steps below. b + (negative 60) = negative 14. subtract 60 from both sides. b = negative 74. what error, if any, did maureen make? maureen’s work is correct, and her original balance was -$74. maureen should have added 60 to both sides. maureen should have added 14 to both sides. maureen made a computational error when she subtracted 14 minus 60.
  
• in the complex plane, the rectangular coordinates (x, y) represent a complex number. which statement explains why polar coordinates (r, θ) represent the same complex number? r is equivalent to startroot x squared + y squared endroot and θ is equivalent to inverse tangent of (startfraction x over y endfraction). r is equivalent to startroot x squared + y squared endroot and θ is equivalent to inverse tangent of (startfraction x over y endfraction). r is equivalent to startroot x squared + y squared endroot and θ is equivalent to inverse tangent of (startfraction x over y endfraction). r is equivalent to startroot x squared + y squared endroot and θ is equivalent to inverse tangent of (startfraction x over y endfraction).
  
• karina strikes a match to light a candle. explain what type of reaction the burning match represents in terms of energy.
  
• the attacks of september 11, 2001, were preceded by attacks in 1998 on american embassies in tanzania and
  
• on a coordinate plane, a curved line with minimum values of (negative 2, 0) and (1.05, negative 41), and a maximum value of (negative 0.5, 5), crosses the x-axis at (negative 2, 0), (0, 0), and (1.5, 0), and crosses the y-axis at (0, 0). which statement is true about the end behavior of the graphed function?
  
• study the image. which phrase describes this plate boundary? does not occur in oceans may form rift valleys is a type of convergent boundary is a region where earthquakes occur
  
• how many insurrections were reported in the south before the emancipation proclamation was issued by president lincoln?
  
• nina studies an artificial heart model. the model has tubes that supply an electric current to the model. nina switches on the current that provides an impulse to the heart. she observes that the heart contracts and relaxes. compare this model with that of a human heart, and place the steps describing how blood flows through the human heart in order.
  
• which excerpt from “pakistan’s malala” shows that malala received worldwide attention for her writing? “""my father said that some days ago someone brought the printout of this diary saying how wonderful it was. . . .” “she was writing around the time the taliban issued a formal edict in january 2009 banning all girls from schools.” “in 2010 she met with u.s. special envoy to pakistan and afghanistan richard holbrooke.” “human rights workers and aid agencies held a seminar in the area in 2008 to try to voice their concerns.”
  
• jacob is visiting argentina, and he hears a warning that the temperature may drop as low as -12.4°c. how cold is that in °f, to the nearest tenth? a. -54.9°f b. -22.3°f c. 9.7°f d. 35.3°f