Answers edited by Alberto M.

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• How do I find the extraneous solution of #sqrt(x-1)=x-7#?
  
• How do you write the equation if F varies inversely as the cube root of S and S = 64 when F = 4?
  
• How do you solve by substitution # x - 5y=10# and #-2x+y=7#?
  
• What is the limit as x approaches infinity of #ln(x)#?
  
• How do you graph the quadratic function #y=-x^2+2x+4#?
  
• Question #e4066
  
• Can someone help with this question?
  
• What is the domain and range for #y = sqrt(x-3)#?
  
• What is the range of the function # h(x) = 1 /(x^2 - 9)#?
  
• How do you find the nth partial sum, determine whether the series converges and find the sum when it exists given #ln(4/3)+ln(9/8)+ln(16/15)+...+ln(n^2/(n^2-1))+...#?
  
• Question #1cabe
  
• How do you solve #sqrt(x+3)-sqrt(x-1)=1#?
  
• How do you evaluate #arcsin 0#?
  
• Question #ddee6