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• two of the steps in the derivation of the quadratic formula are shown below. step 6: startfraction b squared minus 4 a c over 4 a squared endfraction = (x + startfraction b over 2 a endfraction) squared step 7: startfraction plus or minus startroot b squared minus 4 a c endroot over 1 a endfraction = x + startfraction b over 2 a endfraction which operation is performed in the derivation of the quadratic formula moving from step 6 to step 7? subtracting startfraction b over 2 a endfraction from both sides of the equation squaring both sides of the equation taking the square root of both sides of the equation taking the square root of the discriminant
  
• which steps should be used to graph the equation below? y – 4 = (x + 2) 1. plot the point (2, 4). 2. from that point, count left 3 units and down 1 unit and plot a second point. 3. draw a line through the two points. 1. plot the point (2, 4). 2. from that point, count left 1 unit and down 3 units and plot a second point. 3. draw a line through the two points. 1. plot the point (–2,4). 2. from that point, count left 3 units and down 1 unit and plot a second point. 3. draw a line through the two points. 1. plot the point (–2,4). 2. from that point, count left 1 unit and down 3 units and plot a second point. 3. draw a line through the two points.
  
• which survey is most likely affected by bias? a survey of teenagers about their favorite colors a survey of students about vacation policies in a school district a survey of supermarket shoppers about products they would like to see added a survey of bike riders on whether they wear helmets
  
• the system of equations below has no solution.startlayout enlarged left-brace 1st row two-thirds x + five-halves y = 15 2nd row 4 x + 15 y = 12which equation could represent a linear combination of the system?four-thirds x = 42fifteen-halves y = 330 = 0
  
• depending on how mrs. coleman responds to fluid therapy, the team may need to initiate vasopressor infusion with epinephrine, norepinephrine or dopamine. what is the appropriate dose for epinephrine?
  
• read the sentence. the pink car wheezed as it made its way up the steep hill brimming with potholes. which word in the sentence best clarifies the meaning of the personification in the phrase ""car wheezed”? steep pink brimming potholes
  
• which statements apply to leasing a car? check all that apply. the car may be driven as much as needed. payments are generally higher than buying. there are mileage restrictions on the car. you must return the car after the lease ends. there are penalties for ending the lease early. you can sell the car to someone else after the lease ends.
  
• the function f(x) = –x2 – 4x + 5 is shown on the graph. which statement about the function is true? the domain of the function is all real numbers less than or equal to −2. the domain of the function is all real numbers less than or equal to 9. the range of the function is all real numbers less than or equal to −2. the range of the function is all real numbers less than or equal to 9.
  
• which statement is the most accurate comparison of william lloyd garrison and frederick douglass?
  
• read the quotation from the declaration of independence. ""for depriving us, in many cases, of the benefit of trial by jury."" which legal change after the american revolution most likely resulted from this grievance? due process of law was implemented. a new legal system was founded. the court system was established. all colonial court cases were retried.