Questions asked by Anon

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• How do you write an equation of the line tangent to the graph of the circle whose equation is #x^2+y^2=16# at the point (0,4)?
  
• In circle O, angle measure of POV and angle measure of SOR are supplementary - if the measure of angle SOR = 3X, the measure of angle POV = 2x+ 80, and the measure of POS = 5x+10, find the measures of each of the following?
  
• Help please?