Answers edited by Andrew B.

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• How do you find the domain and range of #y = 9 - x^2#?
  
• The measure of the supplement of an angle is 20° more than three times the measure of the original angle. What are the measures of the angles?
  
• Differentiate the function? f(x) = log13(xe^x)
  
• How do you use the chain rule to differentiate #y=(x^2+1)^(1/2)#?
  
• Question #eb29e
  
• What is the old and new chemical name for vinegar and name the family of salts obtained from this acid?
  
• What is the antiderivative of #e^(4x)#?