Answers created by JJ The Pyro .

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• How do you find the 95% confidence interval?
  
• Question #7c61d
  
• Question #20106
  
• Question #ba7ff
  
• How do you solve #-3x^2=2(3x-5)# using the quadratic formula?
  
• How do you simplify #abs(–20)#?
  
• How do you find the exact solutions to the system #y=5# and #y^2=x^2+9#?
  
• How do you solve #\frac { ( b + 1) } { 2} = \frac { ( b - 2) } { 5}#?